Lexus 2007 GS Luxury Sport Sedans Offer More Power,Increased Handling, Performance

For 2007, the new Lexus GS 350 enters the market as a more powerful version of 2006's newly introduced third-generation GS 300. It joins the GS 430 in Lexus' mid-luxury sedan offerings. The 2007 GS 350 builds upon its predecessor model's already significant levels of performance, advanced luxury and intuitive technology, and it becomes the most powerful six-cylinder model in its segment. The handling performance of the 2007 GS 430's potent 4.3-liter V8 is further optimized by a newly available active stabilizer system that automatically and seamlessly counteracts body sway to improve cornering performance.

'The 2007 GS models epitomize the direction of the Lexus brand, offering more emotional design and remarkably higher performance without compromising the luxurious comfort, attention to detail and quality that continue to rank Lexus as the leader in the luxury category,' said Bob Carter, Lexus group vice president and general manager.

The 2007 GS 350 replaces the previous 245-horsepower 3.0-liter engine with a new 303-horsepower 3.5-liter V6, which delivers blistering performance with zero-to-60 mph in just 5.7 seconds, as well as exemplary fuel efficiency for the class. The GS 350 is available in rear- and all-wheel-drive models with respective preliminary EPA-estimated fuel mileage ratings of 21/29 and 20/27 city/highway; the V8 GS 430 continues as a rear-wheel drive model, carrying an EPA-estimated rating of 18/25 mpg.

Aluminum alloy 18-inch wheels are standard on the GS 430 and newly available for the rear-wheel-drive GS 350. All GS models offer the new Generation 5 Lexus DVD Navigation System for 2007, which features Bluetooth® compatibility, voice activation and a rear back-up camera. In addition, the Lexus Link® telematics system is now available for 2007 GS models.

303-Horsepower V6 Is a Power Leader

Optimized for low internal friction, the GS 350's 3.5-liter V6 engine produces 303 horsepower at 6,400 RPM and 274 lb.-ft. of peak torque at 4,800 rpm. A new direct fuel-injection system provides much finer fuel-mixture control to improve both power and fuel efficiency. Dual Variable Valve Timing with intelligence (VVT-i) acts on both intake and exhaust valves to further enhance performance through a wide rpm range.

The GS 430's 4.3-liter double overhead-cam V8 engine produces 290 horsepower at 5,600 rpm and 319 lb.-ft. of torque at 3,400 rpm. Continuously Variable Valve Timing with intelligence (VVT-i) ensures excellent low- and mid-range power for easy highway merging. Both GS models achieve the EPA's Ultra Low Emission Vehicle (ULEV) certification. All 2007 GS models maximize performance with a six-speed automatic transmission that features a sequential manual-shift mode.

All-Wheel Drive for All-Weather Performance

The 2007 GS 350's available all-wheel-drive system helps to enhance handling in diverse driving conditions. A planetary-gear center differential and a wet-type multi-disc clutch control front-to-rear power distribution.

The system normally sends 70 percent of available power to the rear wheels to provide the traditional performance advantages of a rear-drive car, but will vary the torque-split ratio from 30:70 to 50:50 in response to driving conditions and driver input. The AWD system's electronic-control strategy takes inputs such as steering and throttle angle from driver activity combined with vehicle signals from wheel speed and yaw rate sensors.

Ultra-Advanced Dynamic Handling Control

The Lexus GS combines the best-proven design chassis systems with new dynamic handling technology. The double-wishbone front suspension and multilink rear suspension systems feature with geometry optimized to virtually eliminate unwanted wheel-angle changes during suspension movement. The result is a natural, confident feel that's also spirited.

An Adaptive Variable Suspension (AVS) system, standard on and exclusive to the GS 430, provides four settings, including 'sport,' for tighter, more precise control. AVS can automatically select appropriate suspension damping for driving conditions. New for 2007, the GS 430 offers the advanced Active Stabilizer system that reduces body sway and enhances vehicle control during cornering. This new system uses electric actuators, rather than slower hydraulic units commonly found in similar systems.

An Electronic Control Unit (ECU) calculates the force needed to counter excess body sway, which is then applied to the stabilizer bars by the front and rear actuators. The Active Stabilizer system responds within 20 milliseconds, compared to 100 milliseconds for a competitor. The Lexus system consumes no power under normal operating conditions, whereas the competitor's system consumes over 240 watts.

The GS 430 provides the performance enhancements and advanced vehicle control of the Lexus Vehicle Dynamics Integrated Management (VDIM) system. VDIM integrates and manages a host of handling technologies more quickly than previous dynamic handling technologies could. Combining input from a variety of sensors, VDIM is designed to anticipate the onset of a vehicle skid or slide and then help correct the situation with a combination of braking, throttle, and steering control in a way that is essentially transparent to the driver.

VDIM integration helps to provide precise management for the Electronically Controlled Brakes (ECB), Variable Gear Ratio Steering (VGRS), Electric Power Steering (EPS), Vehicle Stability Control (VSC), Anti-lock Braking System (ABS), Brake Assist (BA), Electronic Brake-force Distribution (EBD), and engine torque (via the electronically controlled throttle). New for 2007, the GS also allows the driver to disengage the stability and traction control via the Trac Off switch.

Electric Power Steering

Electric Power Steering (EPS) in the GS 430 provides precise electric power assist using a DC motor built into the steering gear housing, rather than hydraulic assist. Eliminating the hydraulic steering pump reduces engine drag, and the simplified steering system is lighter and more compact, as well.

Also in the GS 430, Variable Gear Ratio Steering (VGRS) can vary the steering from 2.7 turns lock-to-lock for low-speed maneuverability to a slower 3.2 turns lock-to-lock for highway-speed stability. VGRS also provides differential steering control, which helps correct for a delay in steering response, something that occurs in all vehicles, to help enhance driving feel in lane changes and other transitional maneuvers.

Intelligent and Powerful Brakes

Enhanced braking performance in both GS sedans begins with mechanical components that significantly increase brake friction and improve stopping power, while effectively eliminating brake fade. Brake Assist (BA), Electronic Brake-force Distribution (EBD) and the Anti-lock Braking System (ABS) help form a powerful safety front. EBD optimizes brake pressure at each wheel to help minimize body dive or sway during hard braking and cornering. Brake Assist is designed to determine if the driver is attempting emergency braking and, if the driver has not stepped firmly enough on the brake pedal to activate the ABS, it will apply maximum braking force until pedal pressure is released.

The GS 430's Electronically Controlled Brakes (ECB) is a brake-by-wire system. ECB translates brake pedal pressure into electric signals that, via computer control, help provide precise and optimized braking in virtually any traction condition. Electronic control provides quick brake response when needed, helping the GS 430's VDIM system to anticipate and help correct skids before they occur. The ECB system is backed by conventional hydraulic brake control in the unlikely event of electronic failure.

Lexus designers strive to keep controls simple and intuitive, avoiding needless complexity. A secure and distraction-free setting enables the driver to best appreciate the GS' enhanced performance. The SmartAccess keyless entry and push-to-start ignition allow the driver to keep the access fob in a pocket or purse. Audio and climate-control systems are easy to understand and operate, and the GS locates controls that are used less frequently behind a dash panel on the left side of the steering wheel.

The gauge cluster features machined aluminum facings for a classic look. Highlighting the sporty nature of the GS and emphasizing a closer driver-and-machine connection, the quick-response tachometer moves more directly in concert with changes in engine rpm. The unique instrument panel lighting system relies on variable-transparency glass to minimize reflections from the gauge faces and to help optimize visibility in all lighting conditions.

A comprehensive interior lighting system provides just the right amount of light where the driver and passengers need it. All four windows offer one-touch up-and-down operation with jam protection. Both electrochromic auto-dimming side mirrors are power-retractable and feature automatic tilt-down when reverse gear is selected to aid in parking. A power trunk closer provides a finishing touch on this extremely well-equipped car.

Advanced Safety Systems

Both GS models implement a variety of advanced safety systems. The Supplemental Restraint System (SRS) includes variable-force front airbags for both driver and front

passenger. Sensors determine the severity of an impact and in turn the airbag deployment force, helping to provide an appropriate level of occupant restraint. The GS features standard seat-mounted side airbags for the front seats, knee airbags for the driver and front passenger, and front and rear side-curtain airbags.

The optional Pre-Collision System (PCS) in the Lexus GS models can help reduce collision damage. A millimeter-wave radar sensor helps detect obstacles in front of the car, while vehicle speed, steering angle and yaw-rate inputs help to determine whether a collision is unavoidable.

In such a situation, PCS switches the Adaptive Variable Suspension to sport mode for optimal chassis response, preemptively retracts front seat belts, and preinitializes Brake Assist so that increased braking will be applied the instant the driver depresses the pedal. The active braking feature will automatically apply the brakes up to a deceleration rate of 0.3 G's if the driver fails to react to system warnings.

Technology for Safer and Easier Driving

Both '07 GS models provide multiple systems to help improve driver safety and improve the overall behind-the-wheel experience. The Adaptive Front lighting System (AFS), standard on the GS 430 and optional for the GS 350, helps illuminate a curve as the driver steers into it. A Tire Pressure Monitoring system can detect a critical loss in pressure in one or more tires and alert the driver.

The available Intuitive Park Assist (IPA) system uses ultrasonic sensors to detect objects close to the car's front and rear bumpers and alert the driver accordingly. This updated version of the system first used in the LX 470 SUV and the previous-generation Lexus LS flagship sedan offers additional function by adding a steering-input sensor to better judge changes in distance to objects. The rear back-up camera, available in conjunction with the optional navigation system, automatically projects an image of what its lens can detect behind the vehicle onto the navigation screen when the vehicle is in reverse gear.

Indulgent Luxury, Passionate Design

The next-generation GS performance sedans ushered in a new more passionate design direction for the brand. From an architectural standpoint, the new Lexus design language, dubbed L-finesse, is more sculptural and dynamic and eschews gimmickry for intriguing simplicity.

A 112.2-inch wheelbase, long hood, pulled-back cabin and short rear deck create a confident, powerful stance for the GS while a sloped, vertical grille surrounded by four independent headlamps visually connects the newer models with the previous generation while at the same time lending a distinct look that signals the brand's design progression. The boldly styled lower valance features integrated foglamps, and a low 0.27 coefficient of drag (Cd) helps to minimize wind noise.

L-finesse extends to the interior as well with a passenger compartment designed to impart a unique spatial feeling that creates an intuitive and naturally comfortable environment. The end result is a cabin that is intimate without feeling confining. Ultra-premium wood, polished-metal accents and leather trim endow the GS interior with a lavish yet high-precision feel, with touchpoints that convey quality and controls that respond fluidly.

The GS customer can choose from among three interior leather color combinations: Ash with Black Bird's-eye maple wood trim; Cashmere with Brown Bird's-eye maple wood trim, or Black with walnut wood trim. Each combination includes a matching wood and leather-trim steering wheel and shift knob.

The next-generation GS sedans continue the Lexus tradition of providing luxury that envelopes the occupants without introducing unnecessary distractions. The standard Regency leather-trimmed, heated, 10-way power front seats (perforated leather on GS 430) are supportive and comfortably contoured for long-trip support. Fan ventilation for the seats is optional. A power-tilt and telescopic steering wheel helps ensure a comfortable driving position. The standard dual-zone climate-control system filters and deodorizes the air, and a standard rear power sunshade adds to passenger comfort on warm days.

Premium Audio Choices

Lexus long ago established an elevated standard for mobile audio systems, and the next-generation GS models uphold this tenet with a standard system that features an AM/FM/cassette stereo and a 6-disc in-dash CD changer. The system plays through 10 premium speakers while an Automatic Sound Levelizer (ASL) maintains consistent sound levels at varying vehicle speeds.

Within the ultra-quite Lexus GS interior, all styles of music come to life with the 7.1-channel optional Mark Levinson® audio system. Featuring 11 channels of amplification with a total of 330 watts playing through 14 speakers, the system allows users to play both CDs and DVDs. DVD movies can be viewed on the color seven-inch touch screen when the vehicle is in park.

Fifth-Generation Navigation System

All 2007 GS models offer the optional generation five Lexus DVD Navigation System. This revamped system includes voice-recognition that allows the driver to enter a destination by voice command. Visual support is greatly enhanced with a central screen featuring a high-resolution 800 x 480 pixel display in 32,000 colors. On-screen details are crisp and clean, and maps and roads include 3-D shadow effects. Spanish is added to the already available English and French text display options with the user able to select the language preference at system

start-up.

The DVD map database contains more than five million Points of Interest (POI). The database for Chicago, Detroit, Los Angeles, and New York includes a building footprint-display feature that can show graphic representations of buildings and structures to help the driver identify surroundings. System functions include multiple route calculations, route preview, simplified highway junction graphics, and a dual-map screen mode.

Bluetooth® wireless technology integrates with the navigation system to allow the transfer of personal phone books to the navigation system. The driver can also make hands-free phone calls via its touch-screen control panel.

Premium Protection

All new Lexus vehicles come with a 48-month/50,000-mile basic limited warranty with roadside assistance for 48-months/unlimited miles. Powertrain and restraint system coverage is provided for 72 months/70,000 miles. Corrosion perforation protection is covered for 72 months, regardless of mileage.

by Lexus

Designed to fill the gap between the ES and LS, the Lexus GS was introduced by Toyota's luxury department, Lexus, in October of 1991. Also called the Toyota Aristo, the GS was a series of mid-size luxury sports sedans that were styled by the famous Italdesigns Giurgiaro firm. Based on the platform and running gear of the Toyota Crown, the original GS was first introduced in Japan in 1991 and two years later in the U.S., Europe, and varied markets in Asia.

Made available with two inline-6 powered versions for the Japanese market, the Aristo was introduced with the 3.0Q and the 3.0V. While the 3.0Q Aristo had a 2JZ-GE engine capable of producing 226 hp, the 3.0V was equipped with a 24-valve twin-turbo 2JZ-GTe engine that produced 276 hp.

On February 22, 1993, production of the Lexus GS 300 was begun at the Tahara, Japan, assembly plant. A great example for the time of the latest advancement of Tahara production technology, only eight spot welds were performed by hand, while the other nearly 4,200 welds were performed by robots.

Wanting to produce a vehicle capable of competing with the BMW 5-Series and the Mercedes-Benz E-Class, Lexus introduced the GS as the new marketing sports sedan. To further complement the rest of the Lexus lineup, the exterior was styled by Italdesign Giugiaro in a way that blended the elements of both the original LS and the SC in a rounder, aerodynamic shape.

The inside of the Lexus GS 300 featured leather seating, walnut wood trim on the center console, and the availability of a Nakamichi premium stereo system. Other available options included (TRAC) traction control, a moonroof, and a remote 12-CD auto changer. The four-speed automatic transmission was replaced in 1996 with a five-speed automatic.

The main purpose of the GS had been to take the price position of the original LS 400 flagship which had steadily moved upmarket since its introduction in 1989. In comparison to the power and available amenities, the first rear-wheel drive sports sedan by Lexus, the GS, exceeded the LS by a far range. However, GS 300 sales were only considered modest, with 1993 being the most productive year at 19,164 units sold. As the Japanese yen rose in value against the dollar in later years, sales dropped as it made the GS more expensive than its rivals. Stiff competition was brought on by more powerful V8 sport sedans as well which further dropped sales. Initially the GS 300 carried the U.S. base price of $37,930, and by 1997 had risen to $46,195.

In 1998 the second generation of Lexus GS was introduced for the first time outside of

Japan, and utilized a new platform that added a V8 version. 'Something Wicked This Way Comes' was the tagline Lexus used for the arrival for this second generation. This new GS was codenamed JZS160 for models that carried the 2JZ-GE engine, and JZS161 for models with the 2JZ-GTE twin-turbo engines. A bump in torque was also made possible by VVT-I now becoming standard. While no four-wheel drive models were offered, the new GS's styling was produced in-house and now featured quadruple headlights similar to the Lexus SC coupe. For the first time, an upgraded stereo system along with elecroluminiscent Lexus Opitron gauges were offered as well. Once again offered, the GS 300 now featured a slightly revised version of the previous generation's 3.0 L inline-6, which now produced 225 hp and 225 ft·lbf of torque.

The second generation GS sedan was much more of a success in comparison to the generation prior. Sales mounted to a total of 30,622 vehicles sold in the first year alone. By 2000 sales remained quite steady at around 28000 vehicles. Encouraged by its success, Lexus kept the GS sedan in its vehicle lineup for over eight years. The GS 300 was kept at a U.S. base price of approximately $38,000 and $47,000 for the GS 400.

2001 was the only year with any significant changes for the second-generation Lexus GS. The grill was revised slightly, and new subtly tinted headlights were added to the front end. The trunk area also received new clear tail lights with turn signal indicators. While optional on the I6, Xenon high-intensity discharge headlights were made standard on the V8. The GS 300 featured more gleaming wood trim as well as steering wheel shift buttons. Renamed the GS 430 in 2001, the V8 engine received a 0.3 liter bump in displacement. The torque was also increased to 325 ft·lbf, though peak horsepower remained unchanged.

Named Motor Trend's Import Car of the Year for 1998, the GS also made Car and Driver magazine's Ten Best lists from 1998 through 2000.

Using the same twin-turbo engine as found on the Toyota Supra Mk IV, the GS introduced a new, third model in 2002. The V8-powered 4.0Zi-Four joined the Aristo lineup in this year. This newest model came with a 250 hp engine, along with standard four-wheel drive. This was the same V8 that was used in both the first generation Lexus LS and the Toyota Crown Majesta. Both the GS and Aristo models were equipped with an independent, double-wishbone suspension setup.

First introduced as a 2006 model at the 2005 North American International Auto Show, production began on the third generation GS on January 24, 2005. The GS model lineup included the GS 300 which had a 3.0 L V6 3 GR-FSE engine, and the GS 430 with the same 4.3 L V8 that was used in the previous model. Excluding Singapore, the GS 300 featured a direct-injection engine for all markets except Continental Asia.

The first Lexus sedan to offer an all-wheel drive configuration, the GS 300 featured an all-wheel drive option. The Toyota Mark X and the Zero Toyota Crown also featured the 3.0 L engine. In 2006 the current third version of the GS came in V6, V8 and hybrid variations.

The GS was sold as the Toyota Aristo in Japan until 2005, when the Lexus marque was introduced. Seeking to align all world markets, including Japan, using Lexus as their luxury brand worldwide, Toyota chose not to release the equivalent Aristo. The Toyota Aristo was discontinued following the introduction of the third generation of the Lexus GS. The Aristo and the GS essentially differed in both their transmission and engine combinations and equipment packages, though other than that, they were virtually identical.

Showcased as Lexus's new L-finesse design philosophy, the third generation GS featured more muscular styling, new swooping lines, and a fastback profile. This third generation GS indicated the future direction of the Lexus lineup. First previewed on the earlier Lexus LF-S concept, the slingshot cabin was featured on the GS. Also revolutionary, the GS sedans were the first to feature the most updated generation of Lexus' SmartAccess keyless system. This added a push-button start for the first time.

A driver-side hidden panel for more infrequently used controls, other unique features included a standard touchscreen display in the center console, Bluetooth technology, and LED lighting in the cabin. Optional features include a Mark Levinson premium sound system. Each model had an electrochromic instrument cluster that adjusts for the amount of reflected sunlight, a unique feature for the Lexus GS series only.

For the 2007 model year, the GS 350, using the 3.5 L 2GR-FSE engine replaced the GS 300. The 2007 GS 430 horsepower rating was changed to 290 (with 319 ft·lbf. of torque), due to a change in SAE testing procedures. The V6-powered GS 350 was rated at 303 hp (with 274 ft·lbf. of torque). Both vehicles were reported at 0-60 times of 5.7 seconds by Lexus. For the 2008 model year, a 4.6 L GS 460 (URS191) replaced the GS 430. The 460 was equipped with a brand new 4.6 L 1UR-FE engine that generated 342 hp (with 339 ft·lbf. of torque). An 8-speed automatic transmission was also added to the GS 460. The 460 had a reported time of 0-60 seconds in 5.4 seconds, according to Lexus.

At the same time as the introduction of the GS 460, the GS lineup received an exterior overhaul that included a new and improved forward bumper and headlights, new wheel options and exterior colors, and turn signals now added to the side mirrors. The GS also received revised instrument cluster gauges and different trim pieces on the inside of the vehicle. For improved handling, the V8-powered GS 460 offers the Active Stablizer Suspension System, along with the hybrid GS 450h and previous GS 430 models.

The GS 350 costs approximately $44,150, while the GS 460 retails at $52,620.

Introduced at the 2005 New York International Auto Show, the hybrid Lexus GS 450h joined the Gs line for the 2007 model year. Producing over 330 hp, the 450h became the first mass-production rear-wheel drive luxury hybrid vehicle. With a naturally-aspirated 3.5 L 2GR-FSE V6 engine mated to an electric motor and a continuously variable transmission, the 450h's powertrain makes use of the Lexus Hybrid Drive system of integrating electric and gasoline engine motors.

With an MSRP (that includes delivery) of $55,595, the GS 450h comes with a Super Ultra Low Emissions Vehicle emissions rating. Raising the price by several thousands of dollars, several markets only allow the 450h to be purchased with at least one option package.

The battery is rear-mounted, which consumes a significant amount of trunk space. Receiving the Driver Monitoring System in certain markets, the GS 450h is among the first of Lexus vehicles to achieve this. Featuring an infrared steering wheel-mounted camera, this safety system monitors driver attentiveness and sounds an alarm if danger ahead is detected and the driver is not paying attention.

Weighing 4134 lbs, the GS 450h is capable of producing 339 hp due to the combined hybrid powertrain, which allows the GS to accelerate to 60 mph in 5.2 seconds, compared the GS 460's rated 5.4 seconds.

At a price of $65,000, a total of 75 'Neiman Marcus Edition' GS 450h sedans were featured as the annual holiday catalog vehicle. On October 19, 2005, all 75 vehicles were sold in less than three hours and were delivered in April 2006. In Japan, the GS 450h went on sale on March 16, 2006.

For 2002, 2003, 2004, and 2005, J.D. Power and Associates named the GS series the best midsize luxury vehicle in initial quality. For 2005, AAA named the third-generation GS 300 the best car in its class. In 2005, Consumer Reports awarded the Lexus GS as the highest-ranked vehicle in predicted reliability in the luxury car class.

by Jessican Donaldson

2007 Lexus GS 350

Lexus 2007 GS Luxury Sport Sedans Offer More Power,Increased Handling, Performance

GS Chronology