4.24v. II (cat.) - 1991 to 1993

4.24v. II (cat.)

In 1991 the entire Biturbo range was subject to a restyling, which brought new headlights, bumpers, rearview mirrors and a thinner grille, all under the supervision of the famous designer Marcello Gandini. Launched only a few months earlier, the 4.24v. was already sold with the new seven-spoke alloys and rear spoiler, but was now further improved by these latest modifications.

Simultaneously, the catalytic exhaust system was adopted to meet new homologation requirements, with a subsequent increase in weight and slight decrease in power. However, performances remained very much in line with the first series model. This second version was produced in 490 units until 1993, bringing total production of the 4.24v. to 874.

Technical data

0-60 mph 0 to 100 km/h in 6.3 sec. (with cat.)
Bodywork four-door saloon seating five
Bore and stroke 82x63 mm
Brakes discs all round (ventilated front discs with floating calipers), ATE dual circuit, servo-assisted, additional drums on rear wheels for emergency and parking
Brakes front
Brakes rear
Chassis monocoque steel construction
Compression ratio 7.6:1
Cooling system water-cooled, centrifugal pump
Displacements (unitary)
Dry weight 3,110 lbs (1,410 kg)
Engine 90° V6, light alloy block and head with Nigusil-based aluminum cylinder liners
Engine weight
First race
Front Tyres
Front suspension MacPherson struts, dual-rate telescopic dampers, coil springs, anti-roll bar, 4-position electronic adaptive damping
Front track 57.40 in. (1458 mm)
Fuel & lubricant
Fuel feed two IHI water-cooled turbos, two air-to-air intercoolers, constant overboost
Fuel tank 17.58 Imp. gal. (80 litres)
Gear ratios
Height 54.25 in. (1,378 mm)
Ignition electronic ignition and injection
Kerb weight
Length 173.62 in. (4,410 mm)
Lubrication full-flow filter lubrication
Maximum power 240 bhp at 6,000 rpm (with cat.)
Maximum torque 34 kgm (246.4 lbs/ft) at 3,000 rpm (with cat.)
Model 4.24v. II (cat.)
One mile 0 to 1000m. in 26.4 sec. (with cat.)
Production dates 1991-1993
Production start 1991
Quarter mile
Rear Tyres
Rear suspension semi-trailing rear arms mounted on a rear subframe, coil springs, dual-rate pressurised telescopic dampers, 4-position electronic adaptive damping
Rear track 57.48 in. (1460 mm)
Steering hydraulic power-assisted rack and pinion
Timing gear four valves per cylinder (two intake, two exhaust), twin overhead camshafts per cylinder bank
Top speed over 140 mph (225 km/h)
Total displacement 1,996 cc
Transmission 5-speed ZF + reverse, rear-wheel drive, Ranger differential
Tyres fr/rear 205/50 ZR 16
Weight distribution
Wheelbase 102.36 in. (2,600 mm)
Wheels alloy, 7" J x 16"
Width 68.11 in. (1,730 mm)