Ferrari 456 GTA
This was the automatic version of the 456 GT. Supplied as an option on the 400 Automatic from 1976, the automatic transmission was very popular and much in demand on the North American and Pacific markets. The 4-speed gearbox’s electronic management system adapted automatically to different driving styles, dispensing with the need for a kick-down mode.
The history
- V12ENGINE
- 5473.91 ccTOTAL DISPLACEMENT
- 325 kWMAXIMUM POWER @ 6250 rpm
- > 298 km/hTOP SPEED
Engine
- Typefront, longitudinal 65° V12
- Bore/stroke88 x 75mm
- Unitary displacement456.16cc
- Total displacement5473.91cc
- Compression ratio10.6 : 1
- Maximum power325 kW (442 hp) at 6250 rpm
- Power per litre81hp/l
- Maximum torque550 Nm (56 kgm) at 4500 rpm
- Valve actuationtwin overhead camshafts per bank, four valves per cylinder
- Fuel feedBosch Motronic M5.2 injection
- IgnitionBosch Motronic M5.2 electronic static, single spark plug per cylinder
- Lubricationdry sump
- Clutchtorque converter
Chassis
- Frametubular steel
- Front suspensionindependent, unequal-length wishbones, coil springs over gas-filled telescopic shock absorbers, anti-roll bar
- Rear suspensionself-levelling, independent, unequal-length wishbones, coil springs over gas-filled telescopic shock absorbers, anti-roll bar
- Brakesdiscs
- Transmissionautomatic, 4-speed + reverse
- Steeringrack-and-pinion
- Fuel tankcapacity 110litres
- Front tyres255/45 ZR 17
- Rear tyres285/40 ZR 17
Bodywork
- Type2+2 coupé
- Length4730mm
- Width1920mm
- Height1300mm
- Wheelbase2600mm
- Front track1585mm
- Rear track1606mm
- Weight1770kg (dry)
Performance
- Top speedover 298km/h
- Acceleration 0-100 km/h5.5sec
- 0-400 m13.6sec
- 0-1000 m23.7sec