Pontiac Club de Mer
|Also called||XP-200 / SO 2488|
|Predecessor||Pontiac Bonneville Special|
|Body style||2-door Roadster|
|Engine||287 ci Pontiac V-8, OHV|
|Wheelbase||103.251 in (2,623 mm)|
|Length||180.001 in (4,572 mm)|
|Height||38.401 in (975 mm)|
The Pontiac Club de Mer was a purpose-built, concept car that was unveiled at the General Motors Motorama in 1956 to celebrate GM's commitment to futuristic design. The brainchild of GM engineer-designer, Harley Earl (Paul Gillian was also involved being the Pontiac Studio head at the time), the "de Mer" was a two door sport Roadster that incorporated innovative breakthrough styling like a sleek, low-profile body encasing a large powerplant, a design trend used widely in LSR (land speed record) trials at Bonneville Salt Flats in Utah during the 1950s. One Club de Mer prototype was constructed and unveiled, along with another ¼-scale model, in Miami, Florida. As per GM's "kill order", it was scrapped in 1958.
Only the model exists today, which was owned by Joseph Bortz of Highland Park, IL. until it was sold to noted car collector Ron Pratt at the 2007 Barrett Jackson Classic Car Auction for $75,000.
The design of the "de Mer" drew its visual impetus from contemporary aircraft construction of its day, employing a stainless steel monocoque, individual wind screens similar to those on the 1955 Lincoln Futura (later TV's Batmobile), aerodynamically fashioned facia that flowed down from the hood skin to cover most of the grill, concealed headlights, and a single rear-deck dorsal fin. Also featured were twin "silver-streaks" that flowed into low-profile hood scoops, a carry-over from Pontiac's Bonneville Special two years prior. The overall styling of the body was a smooth, non-undulating profile, similar to an American supersonic jet fighter, with virtually no protrusions or recesses of any kind save for the out-vents on the leading edge of both doors, and the fin. The vehicle had no bumpers, a common feature on most concepts, and the door handles were quite small. On a human scale, its most alarming feature was that it had a very low profile at just under 39 in (990.6 mm).
The interior styling in the "de Mer" had a barebones functionality to it, more in keeping with its speed trial “airs” than the flashier production vehicles available in showrooms at the time. Instruments were low key, with triangularly configured gauges mounted well behind a three spoke, GT-style steering wheel, around the steering column. The speedometer was positioned on top, and a smaller gauge on either side, each enclosed in its own pod. The interior was finished in red, while passengers gained entry through conventional doors.
Design legacy 
The design of the aerodynamic wind screens was carried over to the 1955 and 1956 Corvette race cars. In the years that followed, the model kit maker Revell made a 1/25 scale Club de Mer that actually came with 1950s-clad driver and passenger.
Power plant 
Under the hood lay Pontiac’s brand new V-8 engine, the 287 OHV, which was unveiled the year prior. Called the Strato Streak, it was GM's most powerful engine by 1955 and ushered in Pontiac’s high-performance image with the Bonneville, Grand Prix and GTO. This high-output power plant was modified with a high-lift cam and fitted with two four-barrel carburetors to coax power up to a mighty 300 bhp (220 kW). The rear wheels were driven by a rear mounted transaxle, used later in Pontiac's new compact, the 1961 Tempest, on a DiDion Type rigid rear axle with independent suspension.
|Displacement cid / liters||287 / 4.703|
|Power bhp / kW||300 / 220.8 @ 5100 rpm|
|Torque ft·lbf / N•m||330 / 447 @ 2600 rpm.|
|Breaks and Tires|
|Tires||6.40 × 13 whitewalls|
|Acceleration 0–60 mph sec.||N/A|
|Top Speed mph / km/h||N/A|
- "XP" and "SO" were GM designations for experimental (XP) and special order (SO) concept cars.
- "Concept" was not a term used in the 1950s but instead "experimental car"
- Patton, Phil (2006). "The Cars GM Didn't Want You To See". Forbes Magazine (Forbes.com Inc. © 2006). Retrieved 2008-03-20. "GM had a "kill order" on every one of these cars," according to concept car collector/restorer Joseph Bortz. "But the guys who built them would go crying to their bosses and say that these were their Rembrandts, works of art, and could they keep them? And the boss would finally say, 'Okay, but hide the car away. I don't want to hear anything more about it until after I retire."
- Joseph Bortz. Interview of former owner of 1955 1/4-scale Club de Mer model (webcast). Motor Trend Magazine. Retrieved 2008-03-20.
- A "silver-streak", a body detail peculiar to Pontiacs manufactured from 1935 to 1956, was a five-banded, chromed metal band that ran down the middle of the hood and trunk. Born in the Art Deco style of the mid thirties, it was meant as a visual cue to help distinguish Pontiacs from their competitors, and create the illusion of speed. On the de Mer, and on the Bonneville Special two years prior, a pair were used, which was the first time that two "silver-streaks" running parallel appeared on a Pontiac. In 1957 they were discontinued.
- "ConceptCarz". 1956 Pontiac Club de Mer. Retrieved 2008-03-20.