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Image credits: © Pontiac. GM Corp

1954 Pontiac Bonneville Special Motorama news, pictures, specifications, and information
Coupe
Designer: Harley Earl
 
It's said that Harley Earl, director of GM styling, got the idea for a GM concept car while watching world speed records being set at the Salt Flats in Utah. It would be a sports racer called a Bonneville Special. That was when 1954 models were being readied for production and no GM car had ever carried the Bonneville name. Perhaps Harley Earl gave the assignment to Pontiac as the birth of its upcoming performance image. Under the direction of Earl, Hommer LaGassey and Paul Gilland were directed to build two Bonneville Specials. The bronze car would debut in the Grand Ballroom of the Waldorf in New York and the Green one in the Pan Pacific Auditorium in Los Angeles. The Green one would later tour major dealerships around the country. The cars were showbiz and beyond production but realistic enough for the public to identify with them and make them contenders for best remembered Motorama cars.

The outrageous, Corvette-derived, two-seat, fiberglass bubble-top Pontiac Bonneville Special 'Dream Car' roadster was powered by a 268 cubic-inch flathead straight eight, enhanced to produce 230 horsepower. It had a bank of four side-draft two-barrel carburetors and coupled to a two-speed Hydramatic transmission.

The front fenders had 'Bonneville Special' lettering over twin finned-aluminum faux oil coolers. The rear fenders were rounded and arched over the wheels before extending behind them with a round, chrome-rimmed tail-lamp molded in each of their vertical trailing edges. Among its many unique features was the 'Continental Kit' spare tire housing integrated into the rear deck. Its clear plastic gullwing hatches swung up from its roof's center section, allowing for entry and exit.

Pontiac's Motorama star for 1954 was its first sports dream car, the Bonneville Special. Using a name that would make the production cars in 1957 and never let go, the 100-inch wheelbase and fiberglass Bonneville has a transparent plexiglass roof with opening panels over the seat to aid access.

It looks every bit the competition car it was designed to be; however, Pontiac was a year away from having its new V-8 and the 48-inch high machine had to make do with a flathead straight eight and Hydramatic transmission, somewhat limiting potential performance. Hood lines flow back from the open grill to two small scoops, via the traditional Pontiac silver streaks.

Defining the rear is a vertically mounted spare time and wheel with an exposed center. Red bucket seats and full instrumentation, spread across the dash, marked the interior.

Harley J. Earl's trip to the Bonneville Salt Flats in Utah, was said to be the inspiration for the name, the Bonneville was lucky to survive. Most Dream Cars were deliberately cut up to avoid any possible litigation.
Coupe
Designer: Harley Earl
Chassis Num: 5017592
 
The idea behind the Pontiac Bonneville Concept came from the director of GM styling, Harley Earl. The idea came to him while he was watching world speed records being established at the Salt Flats in Utah. Earl gave the ambitious project to Pontiac, perhaps to enhance the division's sporty image. Under the direction of Earl, Hommer LaGassey and Paul Gilland, two examples were built. One was bronze and the other was green. The Metallic Bronze example made its debut in the Grand Ballroom of the Waldorf in New York. The Emerald Green example was put on display in the Pan Pacific Auditorium in Los Angeles. Pontiac later put the green example on a tour of major dealerships around the country.

The Bonneville Specials were basically 1953 Corvettes clothed with a fiberglass body with Pontiac Division styling cues. They were given a clear Plexiglass bubble top and powered by a 268 cubic-inch Pontiac inline-8 delivering 230 horsepower. In comparison, they produced more power than the Corvettes 235 CID Blue Flame inline-6, which was rated at 150 horsepower.

Although the concepts were called the Bonneville Specials, their styling were more aviation-inspired, rather than Land Speed Record machine inspired. Inside, the shift lever resembles an aircraft landing gear lever. The gauges, including the clock, compass and manifold pressure gauge, are salvaged from aircraft instruments. On the outside, the car is devoid of a grille, has full-width air intake, and twin aircraft-style air scoops on the cowl. In the back, where a trunk should be, there is a functional Continental kit built into the bodywork, revealing the turbine-style alloy wheel center in similar design to a jet engine exhaust. The Plexiglass bubble top and curved lift-up gullwing side windows complete the aviation-inspired appearance.

By Daniel Vaughan | Mar 2015
To celebrate General Motors' 50th Anniversary 'Golden Jubilee', all stops were pulled out by the designers on the 1958 Pontiac Bonneville Sport Coupe, undoubtedly one of the flashiest of all 1950's vehicles. A one year only body was featured as a final staement by longtime GM styling chief Harley Earl before his retirement. The entire 1958 lineup litterly sparkled chrome. Unique two-tone exterior color combo's and delxue interiors were showcased on interiors on all 58 models from Chevrolet's, Pontiacs, Buick, Oldmobiles and Cadillacs. There motto for this year was ‘The Boldest Advance in Fifty Years!'

Semon E. 'Bunkie' Knudsen became Pontiac's new general manager in the summer of 1956 and soon after he hired Pete Estes and John DeLorean. Huge changes were in the works for Pontiac. First introduced as mainly a dealer promotion vehicle, that attempted to highlight Pontiac's new high performance image, the original Bonneville was a largy flashy convertible with a highly powered V8 engine generating 310 horsepower.

Originally introduced as a limited production performance convertible in the Pontiac Star Chief model range during the 1957 model year, the Bonneville eventually became its own series in 1958. Historically based of of the Cadillac DeVille, the Bonneville was built by the Pontiac division of General Motors from 1958 until 2005. Pontiac has been best known for its performance vehicles, especially since the introduction of the Bonneville I 1957. Perhaps a little flashier and faster than than a Chevrolet, it is still cheaper than an equivalent Oldsmobile or Buick. That has remained Pontiac's mission.

First appearing in 1954 on on a pair of bubble-topped GM Motorama concept vehicles called the Bonneville Special, the Bonneville name first entered the lineup as the Star Chief Custom Bonneville, which was a high-performance, fuel-injected luxury convertible late during the 57 model year. The very first Bonneville was a spectacular, chrome-laden convertible with a continental-style spare wheel mounting, fuel-injeted engine. It came with an eight-power front seat, underseat heater, degroster electric antenna, and many more unique and exclusive features.

During that first year, only a total of 630 units were produced. This small amount made it the most collectible Pontiac of all time, especially since it cost twice the amount of the star Chief convertible. The Bonneville has persisted, and remained as the division's top of the line model until 2005. Many speed records were being set at the Utah salt flats, and the name was created from the town of Bonneville, the place of much auto racing, and most of the world's land speed record runs.

The public must have liked both the car and its name became in 1958, a coupe was added into the lineup as Bonneville expanded into its own series. In this year it paced the Indianapolis 500. Offering 225 hp an 285 hp V8 engines, the Bonneville sat atop the Pontiac range, also offering a deluxe steering wheel, unique upholstery and chrome wheel covers. The Bonneville also featured wraparound windshields and rear window, two-toning on the roof and long striking sidespear plus chrome hash marks placed on the front fenders.

During its third year, the ‘59 Bonneville gained a 4-door bodystyle along with a nearly complete line in itself. The Pontiac Wide-Track was born in 1959, when all Pontiac makes and models received new chassis with ‘wide-track' stance. During this year, the introduction of two of Pontiac's greatest marketing inspirations were showcased, the split grille, and the Wide Track slogan, both are still part of Pontiac's image to this day.

Sales peaed in 1966 at 135,401 units sold. In 1969, the main highlight became the new V8 engine that provided 360 horesepower. Considered Pontiac's most expensive and most luxurious model throughout the 1960s, the Bonneville was extremely instrumental in moving Pontiac to third place in sales from 1962 until 1970. Bonneville's constantly received updates, changes and restyling, along with new features for all of its trim models throughout the 1970's.

During the early 1970's, the Grand Ville name was being used for Pontiac's highest-price model, and though the Bonneville was de-emphasized slightly, it never went away. In 1976, the Bonneville emerged in the top spot. This was the final year before the down-sized full-sized Pontiacs began to appear in 1977.

The Bonneville nameplate was quite abruptly moved from a full-size vehicle to the mid-sized car in 1982. The mid-sized car was previously known as the Pontiac LeMans. This change was not taken to very well by customers, so Pontiac was forced to reintroduce a full-sized vehicle. They brought over the Canadian-built Pontiac Parisienne, which was basically a re-styled Chevy Caprile that was powered by a Chevrolet V6 or V8 engine. Once again, Bonneville was placed one notch below the top of the line.

Just like the previous time, downsizing became the salvation that the Bonneville needed. The Parisienne was discontinued in 1987, and the Bonneville was redesigned completely as a front-wheel drive vehicle and once again rejoined in pre-1982 platmform buddies, the Buick LeSabre and the Oldsmobile Eighty-Eight. It again regained its status as the senior Pontiac and the SE Bonneville was placed on Car and Driver magazine's Ten Best list for that year.

The decision was made by Pontiac to change the Bonneville from rear wheel drive with a V8 engine to a more economical front wheel drive 3.8 V6 vehicle in 1987. The V6 that was installed was a 3.8L V6 with the RPO code of LG3. A dive in the performance market soon followed, as this engine only produced around 150 hp, though it had a kick of 210 ft-lbs of torque power.

The following model that was introduced in 1989, the Bonneville LE may have been Pontiac's attempt to add a bit more of pep and pizazz to the Bonneville line. This new model moved up to 15 hp and 10 ft-lbs of torque, and this engine has the RPO code of LN3. The Bonneville was once again redesigned in 1991, though it did remain as an H-body.

A total redesign was done in 1992 to the exterior of the Bonneville, though the interior experienced very few changes. The LE trim was also taken off the lineup. Available trims for 1992 were SE, SSE, and SSEi, and airbags now came as standard features in Bonnevilles. Nearly 100,000 Bonneville models were sold in 1992.

Things once again changed in 1993, though the exterior remained the same, the interior did go through a slight update. A sport Luxury Edition was made available for '93, which was basically a base SE, with an SSE exterior, an all of the same available options as an SE. Much remained unchanged for the 1994 model. Much of the vehicle has remained the same throughout the next few years, making way for a total redesign for the 2002 model year.

The Bonneville regained a V8 option on the GXP trim for 2004, which has been a first since 1986. On February 8, 2005, GM announced that the Bonneville would be dropped from Pontiac's lineup for 2006. The high-end Pontiac Grand Prix GXP trim replaced the Bonneville.

For many years, the vehicle fondly called the 'Bonne', the Pontiac Bonneville has showcased a mix of luxury, performance with the aid of a supercharged 3.8 liter engine.

By Jessica Donaldson
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