The Longchamp was derived from the
De Tomaso Deauville four-door saloon, using a shorter wheelbase chassis with the same suspension, engine and transmission. The same platform underpinned the
Maserati Kyalami grand tourer and the
Maserati Quattroporte III saloon as Maserati was owned by De Tomaso at the time. The Deauville and the Longchamp were the only
front engine production cars produced by De Tomaso. The Longchamp was first exhibited at the
1972 Turin Motor Show and was initially offered only as a 2-door
2+2 coupé. It was designed by Tom Tjaarda of
Ghia and was influenced by his previous Lancia Marica prototype. The taillights were the same units as were used for the
Alfa Romeo 1750/2000 saloon. The headlights and front indicators are from the
Ford Consul/Granada. The name Longchamp is likely a reference to the
Longchamp Racecourse in Paris and/or
Longchamps, Buenos Aires, a city near de Tomaso company founder
Alejandro de Tomaso's birthplace. The Longchamp featured a long and wide hood to accommodate the American power train, i.e. the 351 cubic inch (5,769 cc)
Ford Cleveland V8. The 351 Cleveland, a popular and very potent engine in early 1970s Ford
muscle cars, was the same unit used in the
Pantera. It was rated at a power output of and gave the Longchamp an official top speed of . After Ford stopped manufacturing the 351 Cleveland V8 in the US, De Tomaso sourced the engines from Ford Australia. The standard gearbox was a three-speed Ford C-6
Cruise-o-Matic automatic transmission; however around 17 cars were equipped with a five-speed
ZF manual transmission. The suspension was independent front and rear
wishbone unit equipped with coil springs. Steering was power assisted rack and pinion and the car came with vented disc brakes all around with the rear brake discs being positioned inboard. The interior of the car was quite luxurious and it was almost fully upholstered in leather, although the use of Ford sourced parts (steering wheel, gear shift) somewhat diminished the luxurious impression. ==Development==