Car comparison

BMW 6 Series (E24) · Facelift 1987 M 635CSivsBMW 6 Series (E24) 635CSi

Compare specs, acceleration, fuel consumption, dimensions, practicality, and estimated running costs side by side.

New comparison

BMW 6 Series (E24) · Facelift 1987

M 635CSi

260 hp3453 ccGasolineRWDManualNaturally aspiratedCoupe1987-1989
VS

BMW 6 Series (E24)

635CSi

218 hp3453 ccGasolineRWDManualNaturally aspiratedCoupe1978-1982

Comparison overview

Use the estimates as comparison hints and verify exact figures before making decisions.

Best choices

BMW 6 Series (E24) Facelift 1987 M 635CSi

  • Quickest 0-100 km/h
    6.9 s
  • Fastest top speed
    242 km/h
    150 mph
  • Most powerful
    260 hp
    194 kW
  • Highest torque
    330 Nm
    243 lb-ft
  • Best power-to-weight
    172 hp/t
    128 kW/t
    5.8 kg/hp
  • Best overall score
    54/100
  • Best performance score
    56/100

BMW 6 Series (E24) 635CSi

  • Lightest
    1,500 kg
    3,307 lb
  • Lowest combined fuel consumption
    10.0 L/100 km
    23.5 mpg US
    28.2 mpg UK
  • Best estimated range
    700 km
    435 mi
  • Largest trunk
    415 L
  • Best economy score
    80/100
  • Best practicality score
    52/100

Specification comparison

Specification comparison
ModelBMW6 Series (E24)Facelift 1987M 635CSiBMW6 Series (E24)635CSi
Power
260hp194kW
218hp163kW
Torque
330Nm243lb-ft
310Nm229lb-ft
Curb weight
1,515kg3,340lb
1,500kg3,307lb
Gross weight
1,865kg4,112lb
1,860kg4,101lb
Top speed
242 km/h
150 mph
222 km/h
138 mph
To 99% top speed
92.7s99% target: 240 km/h / 149 mph
Calculated
94.9s99% target: 220 km/h / 137 mph
Calculated
0-100 km/h
6.9s
7.6s
0-200 km/h
28.9s
Calculated
40.5s
Calculated
0-60 mph
6.5s
Calculated
7.2s
Calculated
Fuel consumption
11.9L/100 km19.8mpg US23.7mpg UK
10L/100 km23.5mpg US28.2mpg UK
Fuel consumption city
17.6L/100 km13.4mpg US16.1mpg UK
-
Fuel consumption highway
8.1L/100 km29mpg US34.9mpg UK
-
Quarter mile
14.9s
Calculated
15.5s
Calculated
Power-to-weight
172hp/t128kW/t78hp/1000 lb
Calculated
145hp/t108kW/t66hp/1000 lb
Calculated
Torque-to-weight
218Nm/t146lb-ft/ton
Calculated
207Nm/t138lb-ft/ton
Calculated
Estimated range
588km366mi
Calculated
700km435mi
Calculated
Displacement
3,453cc211cu in
3,453cc211cu in
Length
4,815mm190in
4,755mm187in
Width
1,725mm68in
1,725mm68in
Height
1,355mm53in
1,365mm54in
Wheelbase
2,625mm103in
2,626mm103in
Front track
1,430mm56in
1,422mm56in
Rear track
1,464mm58in
1,487mm59in
Trunk volume
335L
415L
Doors
2
2
Seats
4
4
Fuel tank
70L
70L

Performance charts

Use the estimates as comparison hints and verify exact figures before making decisions.

Dyno simulation

Estimated stock-style power and torque curves by engine speed.

BMW 6 Series (E24) Facelift 1987 M 635CSiBMW 6 Series (E24) 635CSiPowerTorque
  • BMW 6 Series (E24) Facelift 1987 M 635CSi: Power / Torque
  • BMW 6 Series (E24) 635CSi: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMW6 Series (E24)Facelift 1987M 635CSi6,500 rpm4,500 rpm6,750 rpm
BMW6 Series (E24)635CSi5,200 rpm4,000 rpm5,450 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMW6 Series (E24)Facelift 1987M 635CSiBMW6 Series (E24)635CSi
Acceleration checkpoints
0-60 mph
0-97 km/h
6.5 s
7.2 s
0-100 km/h
0-62 mph
6.9 s
7.6 s
0-200 km/h
0-124 mph
28.9 s
40.5 s
Top speed
242 km/h
150 mph
222 km/h
138 mph
Drag race simulation
60 ft
18 m
2.4 s
2.4 s
330 ft
101 m
6.4 s
6.6 s
1/8 mile
201 m
9.7 s
10.0 s
1000 ft
305 m
12.5 s
13.0 s
1/4 mile
402 m
14.9 s
15.5 s
Trap speed
1/4 mile
402 m
154 km/h
96 mph
146 km/h
90 mph

Power comparison

Bar comparison chart for Power. Higher is better · hp / kW

Chart data table
VehicleValue
BMW6 Series (E24)Facelift 1987M 635CSi
260 hp
194 kW
BMW6 Series (E24)635CSi
218 hp
163 kW

BMW 6 Series (E24) Facelift 1987 M 635CSi has 42 hp more than BMW 6 Series (E24) 635CSi.

The biggest power difference is between BMW 6 Series (E24) 635CSi and BMW 6 Series (E24) Facelift 1987 M 635CSi: 42 hp (31 kW).

Torque comparison

Bar comparison chart for Torque. Higher is better · Nm / lb-ft

Chart data table
VehicleValue
BMW6 Series (E24)Facelift 1987M 635CSi
330 Nm
243 lb-ft
BMW6 Series (E24)635CSi
310 Nm
229 lb-ft

Curb weight comparison

Bar comparison chart for Curb weight. Lower is better · kg / lb

Chart data table
VehicleValue
BMW6 Series (E24)Facelift 1987M 635CSi
1,515 kg
3,340 lb
BMW6 Series (E24)635CSi
1,500 kg
3,307 lb

Top speed without limiter comparison

Bar comparison chart for Top speed without limiter. Higher is better · km/h / mph

Chart data table
VehicleValue
BMW6 Series (E24)Facelift 1987M 635CSi
242 km/h
150 mph
BMW6 Series (E24)635CSi
222 km/h
138 mph

0-100 km/h comparison

Bar comparison chart for 0-100 km/h. Lower is better · seconds

Chart data table
VehicleValue
BMW6 Series (E24)Facelift 1987M 635CSi6.9 s
BMW6 Series (E24)635CSi7.6 s

The biggest 0-100 km/h difference is between BMW 6 Series (E24) Facelift 1987 M 635CSi and BMW 6 Series (E24) 635CSi: 0.7 s.

Fuel consumption comparison

Bar comparison chart for Fuel consumption. Lower is better · L/100 km / mpg US / mpg UK

Chart data table
VehicleValue
BMW6 Series (E24)Facelift 1987M 635CSi
11.9 L/100 km
19.8 mpg US
23.7 mpg UK
BMW6 Series (E24)635CSi
10.0 L/100 km
23.5 mpg US
28.2 mpg UK

The biggest fuel consumption difference is between BMW 6 Series (E24) 635CSi and BMW 6 Series (E24) Facelift 1987 M 635CSi: 1.9 L/100 km.

Power-to-weight comparison

Bar comparison chart for Power-to-weight. Higher is better · hp/t / kW/t

Chart data table
VehicleValue
BMW6 Series (E24)Facelift 1987M 635CSi
172 hp/t
128 kW/t
5.8 kg/hp
BMW6 Series (E24)635CSi
145 hp/t
108 kW/t
6.9 kg/hp

Estimated range comparison

Bar comparison chart for Estimated range. Higher is better · km / mi

Chart data table
VehicleValue
BMW6 Series (E24)Facelift 1987M 635CSi
588 km
366 mi
BMW6 Series (E24)635CSi
700 km
435 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMW6 Series (E24)Facelift 1987M 635CSi
260 hp
194 kW
6.9 s
242 km/h
150 mph
BMW6 Series (E24)635CSi
218 hp
163 kW
7.6 s
222 km/h
138 mph

Most attractive quadrant

Scatter chart with performance score on the X axis and practicality score on the Y axis.

Chart data table
VehiclePerformance scorePracticality score
BMW6 Series (E24)Facelift 1987M 635CSi
Power
260 hp
194 kW
0-100 km/h6.9 s
Top speed
242 km/h
150 mph
Doors/seats
2 doors
4 seats
Trunk
335 L
11.8 cu ft
Length
4,815 mm
189.6 in
Height
1,355 mm
53.3 in
BMW6 Series (E24)635CSi
Power
218 hp
163 kW
0-100 km/h7.6 s
Top speed
222 km/h
138 mph
Doors/seats
2 doors
4 seats
Trunk
415 L
14.7 cu ft
Length
4,755 mm
187.2 in
Height
1,365 mm
53.7 in

Performance vs fuel economy

Cars closer to the top-right corner combine stronger performance with better fuel economy scores.

Performance vs fuel economy data table
VehiclePerformance scoreFuel economy score
BMW6 Series (E24)Facelift 1987M 635CSi
Power
260 hp
194 kW
0-100 km/h6.9 s
Top speed
242 km/h
150 mph
11.9 L/100 km
19.8 mpg US
23.7 mpg UK
BMW6 Series (E24)635CSi
Power
218 hp
163 kW
0-100 km/h7.6 s
Top speed
222 km/h
138 mph
10.0 L/100 km
23.5 mpg US
28.2 mpg UK

BMW 6 Series (E24) Facelift 1987 M 635CSi is closest to the top-right balance target for performance and fuel economy.

Acceleration vs fuel consumption

Cars closer to the lower-left corner offer a better mix of quick acceleration and low fuel consumption.

Acceleration vs fuel consumption data table
VehicleFuel consumption, L/100 km0-100 km/h, s
BMW6 Series (E24)Facelift 1987M 635CSi
11.9 L/100 km
19.8 mpg US
23.7 mpg UK
6.9 s
BMW6 Series (E24)635CSi
10.0 L/100 km
23.5 mpg US
28.2 mpg UK
7.6 s

Power-to-weight vs fuel consumption

The shaded area favors higher power-to-weight with lower combined fuel consumption.

Power-to-weight vs fuel consumption data table
VehiclePower-to-weight, hp/tFuel consumption, L/100 km
BMW6 Series (E24)Facelift 1987M 635CSi
172 hp/t
128 kW/t
5.8 kg/hp
11.9 L/100 km
19.8 mpg US
23.7 mpg UK
BMW6 Series (E24)635CSi
145 hp/t
108 kW/t
6.9 kg/hp
10.0 L/100 km
23.5 mpg US
28.2 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMW6 Series (E24)Facelift 1987M 635CSiBMW6 Series (E24)635CSi
Power
260 hp
194 kW
218 hp
163 kW
Torque
330 Nm
243 lb-ft
310 Nm
229 lb-ft
Acceleration
6.9 s
7.6 s
Top speed
242 km/h
150 mph
222 km/h
138 mph
Lightness
1,515 kg
3,340 lb
1,500 kg
3,307 lb
Fuel consumption
11.9 L/100 km
19.8 mpg US
23.7 mpg UK
10.0 L/100 km
23.5 mpg US
28.2 mpg UK
Practicality
Doors/seats
2 doors
4 seats
Trunk
335 L
11.8 cu ft
Length
4,815 mm
189.6 in
Height
1,355 mm
53.3 in
Doors/seats
2 doors
4 seats
Trunk
415 L
14.7 cu ft
Length
4,755 mm
187.2 in
Height
1,365 mm
53.7 in
Range score
588 km
366 mi
700 km
435 mi
Trunk score
335 L
11.8 cu ft
415 L
14.7 cu ft
Power-to-weight score
172 hp/t
128 kW/t
5.8 kg/hp
145 hp/t
108 kW/t
6.9 kg/hp
Overall
Fixed score
Fixed score

Fuel cost and annual usage

Estimate running costs from combined consumption, your annual distance, and the fuel price in your local currency.

Enter the fuel price in your local currency, for example €/L, $/gal, £/L or any other local currency.

LC = Local Currency

Fuel cost and annual usage
VehicleBMW 6 Series (E24) Facelift 1987 M 635CSiBMW 6 Series (E24) 635CSi
Consumption11.9 L/100 km19.8 mpg US23.7 mpg UK10 L/100 km23.5 mpg US28.2 mpg UK
Cost / 100 km20.83 LC100 km17.50 LC100 km
Cost / 100 mi33.51 LC100 mi28.16 LC100 mi
Annual fuel used1,785 L472 US gal393 UK gal1,500 L396 US gal330 UK gal
Annual fuel cost3,124 LC/year2,625 LC/year

Head-to-head comparisons

BMW 6 Series (E24) Facelift 1987 M 635CSi

  • Has 42 hp more
  • Has 20 Nm more
  • Is 0.7 s quicker from 0-100 km/h
  • Has 20 km/h (12 mph) higher top speed
  • Has 26 hp/t better power-to-weight

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Most powerful
  • Highest torque
  • Best power-to-weight ratio

Cons

  • Highest combined fuel consumption
  • Heaviest
  • Smallest trunk

BMW 6 Series (E24) 635CSi

  • Is 15 kg lighter
  • Uses 1.9 L/100 km less fuel
  • Has 112 km (69 mi) more estimated range
  • Has 80 L more trunk volume

Pros

  • Lightest
  • Lowest combined fuel consumption
  • Best estimated range
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW 6 Series (E24) M 635CSi
BMW 6 Series (E24) 635CSi
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