98 M3 Technical Data

WEIGHT Unit/Rate       Coupe      Sedan
Unladen lbs 3175 3175 (3241)
Max. Permissible lbs 4255 4255 (4321)
Permitted load lbs 1080 1080
Permitted axle load front/rear lbs 2006/2469 2006/2469
Permitted roof load lbs 165 165
ENGINE
Cylinders/valves   in-line 6/24 in-line 6/24
Capacity litres 3.2 3.2
Bore/stroke inch 3.40/3.53 3.40/3.53
Nominal output/rpm hp 240/6000 240/6000
Max. torque/rpm lb/ft/min 236/3800 236/3800  (225/3800)
Compression ratio/fuel grade :1 10.5/prem 10.5/prem
TRANSMISSION
Standard gear ratios I/II/III :1 4.20/2.49/1.66 4.20/2.49/1.66   (3.67/2.00/1.41)
Standard gear ratios IV/V/R :! 1.24/1.00/3.89 1.24/1.00/3.89  (1.00/0.74/4,10)
PERFORMANCE
Drag coefficient Cd 0.32 0.32
Top speed* mph 137 137
Acceleration  0 -60 mph sec 5.7 5.7 (6.4)
Acceleration  1/4 mile sec 14.3 14.3 (15.1)
FUEL CONSUMPTION
City mpg 20 20 (19)
Highway mpg 28 28 (28)
Fuel tank capacity U.S. Gal 16.4 16.4
WHEELS
Tire dimensions   225/45 ZR 17 245/40 ZR 17  225/45 ZR 17  245/40 ZR 17
Wheel dimensions   7.5 J x 17       8.5 J x 17 7.5 J x17        8.5 J x 17
Material   cast alloy cast alloy
ELECTRICAL SYSTEM
Battery capacity    amp-hours 75 75
Alternator output amps/watts 80/1120 80/1120
Numbers with ( ) apply to vehicle with automatic transmission.
* Top speed limited electronically.