Joining the company from BMW in December, 2014, Albert Biermann's first look at the Stinger signaled to him a car that had to live up to its stunning design from behind the wheel. 'I think for the Kia brand, the Stinger is like a special event,' notes Biermann. 'Because nobody expects such a car, not just the way it looks but also the way it drives. It's a whole different animal.' The car's development took place across Europe, the Middle East, Asia and North and South America, but the Nürburgring's grueling Nordschleife is where the Stinger was honed. With 73 corners, nearly 1,000 feet of elevation and 17 percent gradients, the 'Green Hell' can chew up and spit out a car of lesser mettle in just one lap. Kia's engineers put every development Stinger through a minimum of 480 laps (equivalent to 6,214 miles) of high-stress driving around the Nordschleife for quality, reliability and durability testing. The constant combination of hard acceleration, rapid deceleration, heavy cornering, changing surfaces and camber offers an unrivaled test of dynamic prowess and the distance covered during the Stinger's development resulted in nearly 100,000 miles of on-road testing. Setting the manufacturing hard-points of the body-in-white would define Stinger and the engineers looked carefully across a landscape dotted with contenders. At 114.4 inches, the Stinger's wheelbase is longer than the Audi A5 Sportback, Infiniti Q50, Lexus IS, BMW 4 Gran Coupe and even the Lexus GS and Mercedes CLS1. It's also longer overall (190.2 inches) and wider (73.6 inches) than others in the segment. With a generous 23.3 cu.-ft. of cargo space, the Stinger's cargo area is also larger than many in its class, with enough space for full-size luggage or golf bags and a power liftgate with Smart Trunk functionality is available. The spacious accommodations provide more interior volume than its competitors, including the BMW 6 Series Gran Coupe and 4 Series Gran Coupe, the Audi A5 Sportback, the Lexus GS and the Mercedes-Benz CLS1. Riding on a chassis comprised of 55 percent advanced high-strength steel, the Stinger provides an ultra-stiff foundation for the ride-and-handling engineers to work with. This rigidity also contributes to reduced NVH and a quiet cabin. The MacPherson front setup features large diameter shock absorbers, high-strength wheel bearings, and an aluminum strut brace, while the reinforced five-link rear suspension is mounted to a stiffened rear subframe. The base Stinger rides on a passive suspension tuned to offer a balance of handling and ride comfort, while the GT is equipped with Kia's first continuously damping electronically controlled suspension system, called Dynamic Stability Damping Control. While always reacting predictably to the driver's inputs, depending on road conditions and driving style, the Stinger can be tuned to respond with more agility through corners as the system softens the front shocks and firms up the rear. Conversely, improved high-speed stability is achieved when the system stiffens the front shocks and softens the rear. The system is accessed by the driver through five modes (another Kia first): Custom, Eco, Sport, Comfort and Smart. Standard Rack-mounted Motor Driven Power Steering (R-MDPS) offers razor-sharp feedback through direct mounting of the electric motor on the steering rack, enhancing steering response and reducing unwanted vibration from transmitting through the column. Variable ratio steering is standard on the GT and provides different ratios depending on steering angle, resulting in slower off-center steering and providing improved high speed stability.
If the chassis symbolizes the bones of a gran turismo, then surely the available powertrains represent its heart. Oriented longitudinally and set rearward beneath the long, sculpted hood, a choice of two turbocharged engines are available. The 2.0-liter twin-scroll turbocharged four-cylinder Theta II engine produces 255 horsepower at 6,200 rpm with 260 lb.-ft. of maximum torque available from 1,400 – 4,000 rpm, propelling the Stinger from 0-60 mph in just 5.9 seconds. Performance credentials are further enhanced through the available 3.3-liter twin-turbo V6 Lambda II engine, which produces 365 horsepower at 6,000 rpm and offers 376 lb.-ft. of torque from 1,350 – 4,500 rpm. With more power on tap than the Audi S5 Sportback, BMW 440i Gran Coupe, and Infiniti Q50, the Stinger is positioned to be a worthy challenger to the competition. As such, the Stinger GT accelerates to 60 mph in 4.7 seconds, quicker than the six-cylinder Porsche Panamera. Pushing the twin turbocharged V6 to its full potential will allow the Stinger GT to achieve a governed top speed of 167 mph. The Stinger features a second-generation eight-speed rear-drive automatic transmission. The gearbox has been designed in-house and rewards drivers with crisp shifts and maximized fuel efficiency. More typically found in aviation- and racing-engine applications, the transmission features Kia's first use of a Centrifugal Pendulum Absorber (CPA) torque converter to help reduce torsional vibrations through the drivetrain and has been designed with an oil cooler to more efficiently handle heat build-up. Drivers can let the gearbox manage shifts on its own or may selectively run through the gears via paddle shifters mounted aft of the steering wheel. As with the suspension and steering, up to five different shift patterns may be selected through the vehicle's electronic drive-mode system. Throttle mapping is also adjusted accordingly. Recognizing that passionate drivers may not always reside in optimal climes, the Stinger is Kia's first sedan available with rear- or all-wheel drive. Rear-wheel biased for optimal control in the wet or dry, the AWD system features a new Dynamic Torque Vectoring Control system which monitors driver inputs and road conditions and automatically applies power and braking force to the appropriate wheels to maintain course in adverse conditions. The system freely distributes traction between the front and rear wheels, depending on driving conditions. Should the system detect slippage, power is seamlessly directed towards the front or rear wheels, depending on the driving situation. Up to 50 percent of torque can be distributed to the front wheels and in Sport mode, up to 80 percent of the power can be routed to the rear wheels. Rear-drive GT models get the benefit of an available multi-plate limited slip differential to help evenly distribute power through the rear wheels and enhance directional stability. A choice of alloy wheels and tires are also offered. The 2.0-liter turbocharged four-cylinder models ride on 225/45R-18 performance all-season tires while the 3.3-liter V6 is shod with staggered ultra-high performance Michelin Pilot Sport 4 tires that have been specifically engineered and tuned for the Stinger; 225/40R-19 in front and 255/35R-19 at the rear. Engineers subjected the Stinger to a variety of high-speed braking tests, including continuous runs down the infamous Grossglockner High Alpine Road in the Austrian Alps for constant downhill brake testing. The Stinger GT's stopping power comes from standard high-performance Brembo®2 disc brakes featuring quad-piston front calipers and dual-piston rear calipers, which were subjected to temperatures of more than 1,400 degrees Fahrenheit during their development. The lightweight monobloc all-aluminum calipers reduce unsprung weight and are coupled with large diameter brake discs (13.8-in. front and 13.4-in. rear) that quickly dissipate heat and deliver extremely short stopping distances.
Offering luxurious amenities and unexpected features have become part of Kia's DNA and the Stinger continues that tradition. Multiple Advanced Driver Assistance Systems (ADAS) seamlessly work together to enhance the driving experience. In the United States, The National Highway Traffic Safety Administration conservatively estimates that 100,000 police-reported crashes are the direct result of driver fatigue each year3. This results in an estimated 1,550 deaths, and 71,000 injuries annually. A Kia first is the new Driver Attention Warning (DAW)4 system to help combat distracted or drowsy driving. The system monitors a number of inputs from the vehicle and the driver and will sound a warning chime and display a graphic in the instrument binnacle that it's time to take a break from driving if it senses the driver's attention level has been significantly reduced. Forward Collision Avoidance (FCA)4 with pedestrian detection can detect a potential collision with another vehicle or pedestrian and help bring the car to a halt. Smart Cruise Control with Stop & Go (SCC w/ S&G)4 maintains a pre-set distance between the Stinger and the vehicle in front and can bring the car to a full stop in congested traffic. Lane Keeping Assist (LKA)4 actively monitors the vehicle's intended lane and will alert the driver with an audible warning along with providing steering input to help maintain the vehicle's position. Blind Spot Collision Warning (BCW)4 includes Rear Cross-Traffic Collision Warning (RCCW)4 which scans the area behind the vehicle when backing from a parking space and will alert the driver with an audible warning if cross traffic is detected. Connectivity, entertainment and vehicle information can be as important as a dynamic driving experience and the Stinger comes to market with the latest infotainment systems. The height-adjustable color Head-Up Display (HUD)5 display enables the driver to see key driving information reflected on the windshield glass, including speed, turn-by-turn navigation, audio and cruise control settings and Blind Spot Detection information. Resting within the center console is a wireless Smartphone charging pad and Bluetooth®6 hands-free operation is standard while many of the vehicle's subsystems may be accessed through the steering-wheel-mounted controls. Long-distance travel is a hallmark of the gran turismo ownership experience and there is a trio of high-performance audio systems designed to turn the interior into a dynamic concert hall as the miles blur by. The base audio system for the 2.0-liter turbo features six speakers and a seven-inch haptic touchscreen with the latest version of UVO, Kia's award-winning telematics systems. The standard system found in the 3.3-liter twin turbo ups the speaker count to nine and includes an external amplifier. The available premium Harman/Kardon®7 audio system pumps out 720 watts through an external amplifier to provide crystal-clear music. With 15 speakers and Kia's first under-seat mounted subwoofers tucked beneath the driver and passenger seats, the system features Clari-Fi™8, a patented music restoration technology that rebuilds audio signals that are lost in the digital compression process. This technology returns a high-fidelity listening experience to any compressed digital source. The system also comes equipped with next-generation QuantumLogic™9 Surround Sound technology, which extracts signals from the original recording and redistributes them into an authentic, multidimensional soundstage for playback that is clear, refined and full of detail.
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