The car had a 60-valve, quad-turbo V12 powering all four wheels through a six-speed gearbox. The 3.5 L (3499 cc) engine had a bore of 81 mm (3.2 in) and a stroke of 56.6 mm (2.2 in) and was capable of 553 PS (542 hp/407 kW) at 8000 rpm. Acceleration to 100 km/h (62 mph) took just 3.6 seconds, and the car topped out at 209 mph (336 km/h).

The car used a double wishbone suspension, with the chassis built by Aerospatiale, an aircraft company, and made from carbon fibre. Equipped with Gandini's famous lifting scissor doors, it had a glass engine cover that provided a view of the V12 engine along with a speed-sensitive electronic rear wing that could be raised at the flick of a switch. Five pre-production prototypes with aluminum chassis were built, followed by eight with composite chassis.

A lighter and more powerful model with 600 PS (592 hp/441 kW) at 8000 rpm. This car was capable of 219 mph (352 km/h) and 0-100 km/h (62 mph) in 3.2 seconds.