Biturbo E II (2500) - 1985 to 1987
The 2.5-litre export version of the Biturbo was also revised in July 1985, albeit with few modifications. Just like its 2.0-litre counterpart, it became equipped with Nigusil cylinder liners and a Sensitork differential in place of the Salisbury-type previously mounted.
Sales of the Biturbo E (combining 1st and 2nd series) reached 4577 units, about half compared to the production of the 2.0-litre base model.
Technical data
| 0-60 mph | 0 to 100 km/h in 6.5 sec. |
| Bodywork | three-box two-door coupé seating five |
| Bore and stroke | 91.6x63 mm |
| Brakes | discs all round, dual circuit, servo-assisted, additional drums on rear wheels for handbrake |
| Brakes front | |
| Brakes rear | |
| Chassis | monocoque steel construction |
| Compression ratio | 8.0:1 |
| Cooling system | water-cooled, centrifugal pump |
| Displacements (unitary) | |
| Dry weight | 2,560 lbs (1,161 kg) |
| Engine | 90° V6 |
| Engine weight | |
| First race | |
| Front Tyres | |
| Front suspension | MacPherson struts, dual-rate telescopic dampers, coil springs, anti-roll bar |
| Front track | 55.91 in. (1420 mm) |
| Fuel & lubricant | |
| Fuel feed | two IHI turbos, a single Weber 36 DCNVH 16/100 twin-choke carburettor, MABC (Maserati Automatic Boost Control) |
| Fuel tank | 17.56 Imp. gal. |
| Gear ratios | |
| Height | 51.38 in. (1,305 mm) |
| Ignition | electronic |
| Kerb weight | |
| Length | 163.50 in. (4153mm) - 166.53 in. (4,213 mm) US version only |
| Length-Width-Height | |
| Lubrication | full-flow filter |
| Maximum power | 185 bhp at 5,500 rpm |
| Maximum torque | 221 lbs/ft at 3,000 rpm |
| Model | Biturbo II (2500) |
| One mile | 0 to 1000m in 27.6 sec. |
| Production dates | 1985-1987 |
| Production start | 1985 |
| Quarter mile | |
| Rear Tyres | |
| Rear suspension | semi-trailing rear arms mounted on a rear subframe, coil springs, dual-rate hydraulic telescopic dampers |
| Rear track | 56.34 in. (1431 mm) |
| Reduction | |
| Steering | mechanical rack and pinion (power assistance to order) |
| Timing gear | three valves per cylinder (two intake, one exhaust), twin overhead camshafts |
| Top speed | 133 mph (212 km/h) |
| Total displacement | 2,491 cc |
| Transmission | 5-speed ZF + reverse (4-speed automatic to order), rear wheel drive with Sensitork differential |
| Tyres | fr/rear 195/60 VR 14 Pirelli P6 |
| Weight distribution | |
| Wheelbase | 98.97 in. (2,514 mm) |
| Wheels | alloy, 6" J x 14" |
| Width | 67.48 in. (1,714 mm) |