The GTO was based on the mid-engined, rear wheel drive 308 GTB. The 288 refers to its 2.8 liter V8 engine, though, as it used a de-bored (by 1 mm) V8 with twin IHI turbochargers, intercoolers, and Weber-Marelli fuel injection. The 2855 cc engine capacity was dictated by the FIA’s requirement for a Turbocharged engine’s capacity to be multiplied by 1.4. This gave the GTO a theoretical engine capacity of 3997 cc, just under the Group B limit of 4.0 litres.



Unlike the 308, the engine was mounted longitudinally, using the 308’s rear boot space. The wheelbase was 110 mm (4.3 in) longer at 2450 mm (96.5 in), and the track was widened also. With 400 hp (almost 140 hp per liter) and 366 ft·lbf (496 N·m) of torque, the GTO was an impressive performer. 0-60 mph times were in the upper 4 second range and Ferrari claimed 0-125 mph (201 km/h) in 15 seconds flat. Top speed was a staggering 190 mph (306 km/h).
Evoluzione
Ferrari also built 5 288 GTO Evoluzione models with more aggressive and aerodynamic body styling and increased power. The engine in the Evoluzione originally put out as much as 650 hp; however, this was dialed down to 450 hp after Group B was banned as a whole in 1986. These cars form the clearest visual link between the 288 GTO and the F40, soon to follow.

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