420 i - 1986 to 1988
From 1986, the 420 adopted a Weber fuel injection system, thus becoming the 420 i. The car was otherwise unchanged, save for minor improvements to the suspension.
1124 units were produced between 1986 and 1988.
Technical data
| 0-60 mph | 0 to 100 km/h in 6.5 sec. |
| Bodywork | four-door saloon seating five |
| Bore and stroke | 82x63 mm |
| Brakes | discs all round, A.T.E. (IH type) dual circuit, servo-assisted; two rear drum brakes for emergency and parking |
| Brakes front | |
| Brakes rear | |
| Chassis | monocoque steel construction |
| Compression ratio | 7.8:1 |
| Cooling system | water-cooled, centrifugal pump |
| Displacements (unitary) | |
| Dry weight | 2,601 lbs (1,180 kg) |
| Engine | 90° V6, light alloy block and head, Aluminum-Nigusil cylinder liners |
| Engine weight | |
| First race | |
| Front Tyres | |
| Front suspension | MacPherson struts, dual-rate telescopic dampers, coil springs, anti-roll bar |
| Front track | 56.77 in. (1442 mm) |
| Fuel & lubricant | |
| Fuel feed | 2 IHI turbos with constant overboost |
| Fuel tank | 18.04 Imp. gal. (82 litres) |
| Gear ratios | |
| Height | 53.54 in. (1,360 mm) |
| Ignition | Weber "Speed Density" electronic injection, electronic ignition |
| Kerb weight | |
| Length | 173.23 in. (4,400 mm) |
| Length-Width-Height | |
| Lubrication | full-flow filter lubrication |
| Maximum power | 185 bhp at 6,000 rpm |
| Maximum torque | 26 kgm (188.5 lbs/ft) at 3,500 rpm |
| Model | 420 i |
| One mile | 0 to 1000m in 28 sec. |
| Production dates | 1986-1988 |
| Production start | 1986 |
| Quarter mile | |
| Rear Tyres | |
| Rear suspension | semi-trailing rear arms mounted on a rear subframe, coil springs, dual-rate pressurised hydraulic telescopic dampers |
| Rear track | 57.20 in. (1453 mm) |
| Reduction | |
| Steering | rack and pinion (power assistance to order) |
| Timing gear | |
| Top speed | over 136.5 mph (220 km/h) |
| Total displacement | 1,996 cc |
| Transmission | 5-speed ZF + reverse, rear-wheel drive and Sensitork differential, 3.73:1 ratio |
| Tyres | fr/rear 205/60 VR 14 MXV Michelin |
| Weight distribution | |
| Wheelbase | 102.36 in. (2,600 mm) |
| Wheels | light alloy, 6.5" J x 14" |
| Width | 68.11 in. (1,730 mm) |