Car comparison

BMW 6 Series (E24) 635CSivsBMW E9 3.0CS

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

New comparison

BMW 6 Series (E24)

635CSi

218 hp3453 ccGasolineRWDManualNaturally aspiratedCoupe1978-1982
VS

BMW E9

3.0CS

180 hp2985 ccGasolineRWDManualNaturally aspiratedCoupe1971-1975

Comparison overview

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

Best choices

BMW 6 Series (E24) 635CSi

  • Quickest 0-100 km/h
    7.6 s
  • Fastest top speed
    222 km/h
    138 mph
  • Most powerful
    218 hp
    163 kW
  • Highest torque
    310 Nm
    229 lb-ft
  • Best power-to-weight
    145 hp/t
    108 kW/t
    6.9 kg/hp
  • Lowest combined fuel consumption
    10.0 L/100 km
    23.5 mpg US
    28.2 mpg UK
  • Best estimated range
    700 km
    435 mi
  • Best overall score
    50/100
  • Best performance score
    49/100
  • Best economy score
    80/100

BMW E9 3.0CS

  • Lightest
    1,400 kg
    3,086 lb
  • Largest trunk
    450 L
  • Best practicality score
    53/100

Specification comparison

Specification comparison
ModelBMW6 Series (E24)635CSiBMWE93.0CS
Power
218hp163kW
180hp134kW
Torque
310Nm229lb-ft
260Nm192lb-ft
Curb weight
1,500kg3,307lb
1,400kg3,086lb
Gross weight
1,860kg4,101lb
1,790kg3,946lb
Top speed
222 km/h
138 mph
213 km/h
132 mph
To 99% top speed
94.9s99% target: 220 km/h / 137 mph
Calculated
95.4s99% target: 211 km/h / 131 mph
Calculated
0-100 km/h
7.6s
8.2s
0-200 km/h
40.5s
Calculated
51.5s
Calculated
0-60 mph
7.2s
Calculated
7.7s
Calculated
Fuel consumption
10L/100 km23.5mpg US28.2mpg UK
11.2L/100 km21mpg US25.2mpg UK
Fuel consumption highway-
8.5L/100 km27.7mpg US33.2mpg UK
Quarter mile
15.5s
Calculated
16.0s
Calculated
Power-to-weight
145hp/t108kW/t66hp/1000 lb
Calculated
129hp/t96kW/t58hp/1000 lb
Calculated
Torque-to-weight
207Nm/t138lb-ft/ton
Calculated
186Nm/t124lb-ft/ton
Calculated
Estimated range
700km435mi
Calculated
643km399mi
Calculated
Displacement
3,453cc211cu in
2,985cc182cu in
Length
4,755mm187in
4,660mm183in
Width
1,725mm68in
1,670mm66in
Height
1,365mm54in
1,370mm54in
Wheelbase
2,626mm103in
2,625mm103in
Front track
1,422mm56in
1,446mm57in
Rear track
1,487mm59in
1,402mm55in
Trunk volume
415L
450L
Doors
2
2
Seats
4
4
Fuel tank
70L
72L

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) 635CSiBMW E9 3.0CSPowerTorque
  • BMW 6 Series (E24) 635CSi: Power / Torque
  • BMW E9 3.0CS: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMW6 Series (E24)635CSi5,200 rpm4,000 rpm5,450 rpm
BMWE93.0CS6,000 rpm3,700 rpm6,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMW6 Series (E24)635CSiBMWE93.0CS
Acceleration checkpoints
0-60 mph
0-97 km/h
7.2 s
7.7 s
0-100 km/h
0-62 mph
7.6 s
8.2 s
0-200 km/h
0-124 mph
40.5 s
51.5 s
Top speed
222 km/h
138 mph
213 km/h
132 mph
Drag race simulation
60 ft
18 m
2.4 s
2.5 s
330 ft
101 m
6.6 s
6.8 s
1/8 mile
201 m
10.0 s
10.3 s
1000 ft
305 m
13.0 s
13.4 s
1/4 mile
402 m
15.5 s
16.0 s
Trap speed
1/4 mile
402 m
146 km/h
90 mph
141 km/h
88 mph

Power comparison

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

Chart data table
VehicleValue
BMW6 Series (E24)635CSi
218 hp
163 kW
BMWE93.0CS
180 hp
134 kW

BMW 6 Series (E24) 635CSi has 38 hp more than BMW E9 3.0CS.

The biggest power difference is between BMW E9 3.0CS and BMW 6 Series (E24) 635CSi: 38 hp (28 kW).

Torque comparison

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

Chart data table
VehicleValue
BMW6 Series (E24)635CSi
310 Nm
229 lb-ft
BMWE93.0CS
260 Nm
192 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
BMW6 Series (E24)635CSi
1,500 kg
3,307 lb
BMWE93.0CS
1,400 kg
3,086 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)635CSi
222 km/h
138 mph
BMWE93.0CS
213 km/h
132 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)635CSi7.6 s
BMWE93.0CS8.2 s

The biggest 0-100 km/h difference is between BMW 6 Series (E24) 635CSi and BMW E9 3.0CS: 0.6 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)635CSi
10.0 L/100 km
23.5 mpg US
28.2 mpg UK
BMWE93.0CS
11.2 L/100 km
21.0 mpg US
25.2 mpg UK

The biggest fuel consumption difference is between BMW 6 Series (E24) 635CSi and BMW E9 3.0CS: 1.2 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)635CSi
145 hp/t
108 kW/t
6.9 kg/hp
BMWE93.0CS
129 hp/t
96 kW/t
7.8 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
BMW6 Series (E24)635CSi
700 km
435 mi
BMWE93.0CS
643 km
399 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMW6 Series (E24)635CSi
218 hp
163 kW
7.6 s
222 km/h
138 mph
BMWE93.0CS
180 hp
134 kW
8.2 s
213 km/h
132 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)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
BMWE93.0CS
Power
180 hp
134 kW
0-100 km/h8.2 s
Top speed
213 km/h
132 mph
Doors/seats
2 doors
4 seats
Trunk
450 L
15.9 cu ft
Length
4,660 mm
183.5 in
Height
1,370 mm
53.9 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)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
BMWE93.0CS
Power
180 hp
134 kW
0-100 km/h8.2 s
Top speed
213 km/h
132 mph
11.2 L/100 km
21.0 mpg US
25.2 mpg UK

BMW 6 Series (E24) 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)635CSi
10.0 L/100 km
23.5 mpg US
28.2 mpg UK
7.6 s
BMWE93.0CS
11.2 L/100 km
21.0 mpg US
25.2 mpg UK
8.2 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)635CSi
145 hp/t
108 kW/t
6.9 kg/hp
10.0 L/100 km
23.5 mpg US
28.2 mpg UK
BMWE93.0CS
129 hp/t
96 kW/t
7.8 kg/hp
11.2 L/100 km
21.0 mpg US
25.2 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMW6 Series (E24)635CSiBMWE93.0CS
Power
218 hp
163 kW
180 hp
134 kW
Torque
310 Nm
229 lb-ft
260 Nm
192 lb-ft
Acceleration
7.6 s
8.2 s
Top speed
222 km/h
138 mph
213 km/h
132 mph
Lightness
1,500 kg
3,307 lb
1,400 kg
3,086 lb
Fuel consumption
10.0 L/100 km
23.5 mpg US
28.2 mpg UK
11.2 L/100 km
21.0 mpg US
25.2 mpg UK
Practicality
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
Doors/seats
2 doors
4 seats
Trunk
450 L
15.9 cu ft
Length
4,660 mm
183.5 in
Height
1,370 mm
53.9 in
Range score
700 km
435 mi
643 km
399 mi
Trunk score
415 L
14.7 cu ft
450 L
15.9 cu ft
Power-to-weight score
145 hp/t
108 kW/t
6.9 kg/hp
129 hp/t
96 kW/t
7.8 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) 635CSiBMW E9 3.0CS
Consumption10 L/100 km23.5 mpg US28.2 mpg UK11.2 L/100 km21 mpg US25.2 mpg UK
Cost / 100 km17.50 LC100 km19.60 LC100 km
Cost / 100 mi28.16 LC100 mi31.54 LC100 mi
Annual fuel used1,500 L396 US gal330 UK gal1,680 L444 US gal370 UK gal
Annual fuel cost2,625 LC/year2,940 LC/year

Head-to-head comparisons

BMW 6 Series (E24) 635CSi

  • Has 38 hp more
  • Has 50 Nm more
  • Is 0.6 s quicker from 0-100 km/h
  • Has 9 km/h (6 mph) higher top speed
  • Uses 1.2 L/100 km less fuel
  • Has 17 hp/t better power-to-weight
  • Has 57 km (36 mi) more estimated range

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Most powerful
  • Highest torque
  • Lowest combined fuel consumption
  • Best power-to-weight ratio
  • Best estimated range

Cons

  • Heaviest
  • Smallest trunk

BMW E9 3.0CS

  • Is 100 kg lighter
  • Has 35 L more trunk volume

Pros

  • Lightest
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Highest combined fuel consumption
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW 6 Series (E24) 635CSi
BMW E9 3.0CS
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BMW 6 Series (E24) 635CSi vs BMW E9 3.0CS - car comparison - FastVsFaster