Introduced contemporaneously with the Maserati 420, the Maserati guys also release a sportier 420 S saw its power output raised by 25 HP to reach an already impressive 210 HP. This increase was due in great part to the use of a twin air-to-air intercooler, the presence of which was given away by two NACA ducts on the bonnet.

In practice, the model was very similar to the Biturbo S, only with four doors and the implied longer wheelbase. Hence the body followed the same treatment with a two-tone paint scheme (silver or red over grey lower-body) and blacked-out chrome trim. The interior was trimmed by hand in red leather, deployed on the central part of the seats, centre console, dashboard and armrests.

254 cars were built before the model was upgraded with the Weber electronic injection system, thus becoming the 420 Si.

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1985 Maserati 420 S Image Gallery

1985 Maserati 420 S In Detail

tagsMaserati Biturbo
submitted byRichard Owen
typeSeries Production Car
engine90° V6
positionFront Longitudinal
aspirationTwin IHI Water-Cooled Turbos
ignitionElectronic Ignition
valvetrainDOHC 3 Valves / Cyl
fuel feedsingle twin-choke carburettor
displacement1995 cc / 121.8 in³
bore82 mm / 3.23 in
stroke63 mm / 2.48 in
compression7.8:1
power156.6 kw / 210 bhp @ 6500 rpm
specific output105.26 bhp per litre
bhp/weight174.56 bhp per tonne
torque253.5 nm / 187 ft lbs @ 3500 rpm
body / frameUnitary Steel Monocoque
driven wheelsRWD
front tires205/60 VR 14
rear tires205/60 VR 14
front brakesDiscs
front wheelsF 35.6 x 16.5 cm / 14 x 6.5 in
rear wheelsR 35.6 x 6.5 cm / 14 x 2.6 in
steeringRack & Pinion w/Power Assist
curb weight1203 kg / 2650 lbs
wheelbase2600 mm / 102.4 in
front track1442 mm / 56.8 in
rear track11453 mm / 450.9 in
length4400 mm / 173.2 in
width1730 mm / 68.1 in
height1360 mm / 53.5 in
transmissionGetrag 5-Speed Manual
top speed~220 kph / 136.7 mph
0 – 60 mph~6.4 seconds
fuel capacity82 litres or 21.65 gal.

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