The Porsche 928 is a sports-GT car that was sold by Porsche AG of Germany from 1978 to 1995. Originally intended to replace the company's iconic 911, the 928 combined the power, poise, and handling of a sports car with the refinement, comfort, and equipment of a luxury sedan to create what some Porsche executives thought would be a vehicle with wider appeal than the compact, quirky and sometimes difficult 911.
Since its inception in 1949, Porsche has manufactured only six front-engined models, four of which were coupes, including the 928. The car has the distinction of being the company's only coupe powered by a front-mounted V8 engine, and the company's first mass-produced V8 powered model.
Ordered by Ferry Porsche to come up with a production-feasible concept for his new model, Fuhrmann initiated a design study in 1971, eventually taking from the process the final specs for the 928. Several drivetrain layouts were considered during early development, including rear and mid-engined designs, but most were dismissed because of technical and/or legislative difficulties. Having the engine, transmission, catalytic converter(s) and exhaust all cramped into a small rear engine bay made emission and noise control more difficult, something Porsche was already facing problems with on the 911 and wanted to avoid. After deciding that the mid-engine layout didn't allow enough room in the passenger compartment, a front engine/rear wheel drive layout was chosen. Porsche also may have feared that the U.S. government would soon ban the sale of rear-engined cars in response to the consumer concern over safety problems with the rear-engined Chevrolet Corvair. The Corvair's alleged safety issues were famously detailed in the book Unsafe at Any Speed by consumer advocate Ralph Nader.
The body, styled by Wolfgang Möbius under guidance of Anatole Lapine, was mainly galvanized steel, but the doors, front fenders, and hood were aluminum in order to make the car more lightweight. It had a substantial luggage area accessed via a large hatchback. The new polyurethane elastic bumpers were integrated into the nose and tail and covered in body-coloured plastic; an unusual feature for the time that aided the car visually and reduced its drag. Porsche opted not to offer a convertible variant but several aftermarket modifiers offered convertible conversions, most notably Carelli, based in Orange County, CA. The Carelli conversions were sold as complete cars, with the conversion doubling the price of the car. A reported 12 units were made.
The 928 qualified as a 2+2, having two small seats in the rear. Both rear seats could be folded down to enlarge the luggage area, and both the front and rear seats had sun visors for occupants. The rear seats are small due to the prominent transmission hump [the rear seats have leg room like a front drive car due to the rear transmission], and are only suitable for children, or for typical adults on a short trip. The 928 was also the first vehicle in which the instrument cluster moved along with the adjustable steering wheel in order to maintain maximum instrument visibility.
Length : cm (in): 452 (178)
Width : cm (in): 184 (72.3)
Height : cm (in): 128 (50.5)
Wheelbase : cm (in) : 250 (98.4)
Weight: kg (lb) : 1550 (3417)
Displacement : V8 4957 cc (302 ci), front-mounted
Valve gear : 16
Fuel system : Bo LH-Jet fuel injection.
Gearbox : 4-speed automatic
Driven wheels : rear-wheel drive
Maximum power : 320 bhp at 6000 rpm
Maximum torque : 430 Nm at 3000 rpm
Top speed : 265 km/h (165 mph)