Car comparison

Mercedes-Benz SLC (C107) 450 SLC 5.0 V8vsBMW 6 Series (E24) 635CSi

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

New comparison

Mercedes-Benz SLC (C107)

450 SLC 5.0 V8

240 hp5025 ccGasolineRWDAutomaticNaturally aspiratedCoupe1978-1980
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

Mercedes-Benz SLC (C107) 450 SLC 5.0 V8

  • Fastest top speed
    240 km/h
    149 mph Unrestricted
    225 km/h
    140 mph Restricted
  • Most powerful
    240 hp
    179 kW
  • Highest torque
    402 Nm
    296 lb-ft
  • Best power-to-weight
    158 hp/t
    118 kW/t
    6.3 kg/hp
  • Best overall score
    54/100
  • Best performance score
    52/100
  • Best practicality score
    57/100

BMW 6 Series (E24) 635CSi

  • Quickest 0-100 km/h
    7.6 s
  • 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
  • Best economy score
    80/100

Specification comparison

Specification comparison
ModelMercedes-BenzSLC (C107)450 SLC 5.0 V8BMW6 Series (E24)635CSi
Power
240hp179kW
218hp163kW
Torque
402Nm296lb-ft
310Nm229lb-ft
Curb weight
1,515kg3,340lb
1,500kg3,307lb
Gross weight
2,005kg4,420lb
1,860kg4,101lb
Top speed
Unrestricted
240 km/h149 mph
Restricted
225 km/h140 mph
Calculated
222 km/h
138 mph
To 99% top speed
105.8s99% target: 238 km/h / 148 mph
Calculated
95.7s99% target: 220 km/h / 137 mph
Calculated
0-100 km/h
8.5s
7.6s
0-200 km/h
34.9s
Calculated
40.7s
Calculated
0-60 mph
8.1s
Calculated
7.2s
Calculated
Fuel consumption
14.5L/100 km16.2mpg US19.5mpg UK
10L/100 km23.5mpg US28.2mpg UK
Quarter mile
16.1s
Calculated
15.5s
Calculated
Power-to-weight
158hp/t118kW/t72hp/1000 lb
Calculated
145hp/t108kW/t66hp/1000 lb
Calculated
Torque-to-weight
265Nm/t178lb-ft/ton
Calculated
207Nm/t138lb-ft/ton
Calculated
Estimated range
621km386mi
Calculated
700km435mi
Calculated
Displacement
5,025cc307cu in
3,453cc211cu in
Length
4,750mm187in
4,755mm187in
Width
1,790mm70in
1,725mm68in
Height
1,330mm52in
1,365mm54in
Wheelbase
2,815mm111in
2,626mm103in
Front track
1,452mm57in
1,422mm56in
Rear track
1,440mm57in
1,487mm59in
Trunk volume-
415L
Doors
2
2
Seats
5
4
Fuel tank
90L
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.

Mercedes-Benz SLC (C107) 450 SLC 5.0 V8BMW 6 Series (E24) 635CSiPowerTorque
  • Mercedes-Benz SLC (C107) 450 SLC 5.0 V8: Power / Torque
  • BMW 6 Series (E24) 635CSi: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Mercedes-BenzSLC (C107)450 SLC 5.0 V85,000 rpm3,200 rpm5,250 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
MetricMercedes-BenzSLC (C107)450 SLC 5.0 V8BMW6 Series (E24)635CSi
Acceleration checkpoints
0-60 mph
0-97 km/h
8.1 s
7.2 s
0-100 km/h
0-62 mph
8.5 s
7.6 s
0-200 km/h
0-124 mph
34.9 s
40.7 s
Top speed
Unrestricted
240 km/h149 mph
Restricted
225 km/h140 mph
Likely limited
222 km/h
138 mph
Drag race simulation
60 ft
18 m
2.7 s
2.4 s
330 ft
101 m
7.1 s
6.6 s
1/8 mile
201 m
10.6 s
10.0 s
1000 ft
305 m
13.6 s
13.0 s
1/4 mile
402 m
16.1 s
15.5 s
Trap speed
1/4 mile
402 m
145 km/h
90 mph
145 km/h
90 mph

Power comparison

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

Chart data table
VehicleValue
Mercedes-BenzSLC (C107)450 SLC 5.0 V8
240 hp
179 kW
BMW6 Series (E24)635CSi
218 hp
163 kW

Mercedes-Benz SLC (C107) 450 SLC 5.0 V8 has 22 hp more than BMW 6 Series (E24) 635CSi.

The biggest power difference is between BMW 6 Series (E24) 635CSi and Mercedes-Benz SLC (C107) 450 SLC 5.0 V8: 22 hp (16 kW).

Torque comparison

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

Chart data table
VehicleValue
Mercedes-BenzSLC (C107)450 SLC 5.0 V8
402 Nm
296 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
Mercedes-BenzSLC (C107)450 SLC 5.0 V8
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
Mercedes-BenzSLC (C107)450 SLC 5.0 V8
Unrestricted
240 km/h149 mph
Restricted
225 km/h140 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
Mercedes-BenzSLC (C107)450 SLC 5.0 V88.5 s
BMW6 Series (E24)635CSi7.6 s

Although Mercedes-Benz SLC (C107) 450 SLC 5.0 V8 has more power, BMW 6 Series (E24) 635CSi is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between BMW 6 Series (E24) 635CSi and Mercedes-Benz SLC (C107) 450 SLC 5.0 V8: 0.9 s.

Fuel consumption comparison

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

Chart data table
VehicleValue
Mercedes-BenzSLC (C107)450 SLC 5.0 V8
14.5 L/100 km
16.2 mpg US
19.5 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 Mercedes-Benz SLC (C107) 450 SLC 5.0 V8: 4.5 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
Mercedes-BenzSLC (C107)450 SLC 5.0 V8
158 hp/t
118 kW/t
6.3 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
Mercedes-BenzSLC (C107)450 SLC 5.0 V8
621 km
386 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
Mercedes-BenzSLC (C107)450 SLC 5.0 V8
240 hp
179 kW
8.5 s
Unrestricted
240 km/h149 mph
Restricted
225 km/h140 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
Mercedes-BenzSLC (C107)450 SLC 5.0 V8
Power
240 hp
179 kW
0-100 km/h8.5 s
Top speed
Unrestricted
240 km/h149 mph
Restricted
225 km/h140 mph
Doors/seats
2 doors
5 seats
Trunk-
Length
4,750 mm
187.0 in
Height
1,330 mm
52.4 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
Mercedes-BenzSLC (C107)450 SLC 5.0 V8
Power
240 hp
179 kW
0-100 km/h8.5 s
Top speed
Unrestricted
240 km/h149 mph
Restricted
225 km/h140 mph
14.5 L/100 km
16.2 mpg US
19.5 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) 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
Mercedes-BenzSLC (C107)450 SLC 5.0 V8
14.5 L/100 km
16.2 mpg US
19.5 mpg UK
8.5 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
Mercedes-BenzSLC (C107)450 SLC 5.0 V8
158 hp/t
118 kW/t
6.3 kg/hp
14.5 L/100 km
16.2 mpg US
19.5 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
VehicleMercedes-BenzSLC (C107)450 SLC 5.0 V8BMW6 Series (E24)635CSi
Power
240 hp
179 kW
218 hp
163 kW
Torque
402 Nm
296 lb-ft
310 Nm
229 lb-ft
Acceleration
8.5 s
7.6 s
Top speed
Unrestricted
240 km/h149 mph
Restricted
225 km/h140 mph
222 km/h
138 mph
Lightness
1,515 kg
3,340 lb
1,500 kg
3,307 lb
Fuel consumption
14.5 L/100 km
16.2 mpg US
19.5 mpg UK
10.0 L/100 km
23.5 mpg US
28.2 mpg UK
Practicality
Doors/seats
2 doors
5 seats
Trunk-
Length
4,750 mm
187.0 in
Height
1,330 mm
52.4 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
621 km
386 mi
700 km
435 mi
Trunk score
-
415 L
14.7 cu ft
Power-to-weight score
158 hp/t
118 kW/t
6.3 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
VehicleMercedes-Benz SLC (C107) 450 SLC 5.0 V8BMW 6 Series (E24) 635CSi
Consumption14.5 L/100 km16.2 mpg US19.5 mpg UK10 L/100 km23.5 mpg US28.2 mpg UK
Cost / 100 km25.38 LC100 km17.50 LC100 km
Cost / 100 mi40.84 LC100 mi28.16 LC100 mi
Annual fuel used2,175 L575 US gal478 UK gal1,500 L396 US gal330 UK gal
Annual fuel cost3,806 LC/year2,625 LC/year

Head-to-head comparisons

Mercedes-Benz SLC (C107) 450 SLC 5.0 V8

  • Has 22 hp more
  • Has 92 Nm more
  • Has 18 km/h (11 mph) higher top speed
  • Has 13 hp/t better power-to-weight

Pros

  • Highest top speed
  • Most powerful
  • Highest torque
  • Best power-to-weight ratio

Cons

  • Slowest 0-100 km/h
  • Highest combined fuel consumption
  • Heaviest

BMW 6 Series (E24) 635CSi

  • Is 15 kg lighter
  • Is 0.9 s quicker from 0-100 km/h
  • Uses 4.5 L/100 km less fuel
  • Has 79 km (49 mi) more estimated range

Pros

  • Quickest 0-100 km/h in this comparison
  • Lightest
  • Lowest combined fuel consumption
  • Best estimated range

Cons

  • Lowest power
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
Mercedes-Benz SLC (C107) 450 SLC 5.0 V8
BMW 6 Series (E24) 635CSi
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