Car comparison

Mercedes-Benz SLS AMG Roadster (R197) GT 6.2 V8vsMcLaren MP4-12C Spider 3.8 V8

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

New comparison

Mercedes-Benz SLS AMG Roadster (R197)

GT 6.2 V8

591 hp6208 ccGasolineRWDDual-clutchNaturally aspiratedRoadster2012-2013
VS

McLaren MP4-12C Spider

3.8 V8

625 hp3799 ccGasolineRWDAutomaticTwin-turboRoadster2011-2014

Comparison overview

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

Best choices

McLaren MP4-12C Spider 3.8 V8

  • Quickest 0-100 km/h
    3.3 s
  • Most powerful
    625 hp
    466 kW
  • Lightest
    1,474 kg
    3,250 lb
  • Best power-to-weight
    424 hp/t
    316 kW/t
    2.4 kg/hp
  • Lowest combined fuel consumption
    11.7 L/100 km
    20.1 mpg US
    24.1 mpg UK
  • Best overall score
    73/100
  • Best performance score
    92/100
  • Best economy score
    75/100
  • Best practicality score
    32/100

Specification comparison

Specification comparison
ModelMercedes-BenzSLS AMG Roadster (R197)GT 6.2 V8McLarenMP4-12C Spider3.8 V8
Power
591hp441kW
625hp466kW
Torque
650Nm479lb-ft
600Nm443lb-ft
Curb weight
1,660kg3,660lb
1,474kg3,250lb
Gross weight
1,960kg4,321lb
-
Top speed
Unrestricted
330 km/h205 mph
Restricted
320 km/h199 mph
Calculated
329 km/h
204 mph
To 99% top speed
58.6s99% target: 327 km/h / 203 mph
Calculated
51.4s99% target: 326 km/h / 202 mph
Calculated
0-100 km/h
3.7s
3.3s
0-200 km/h
10.4s
Calculated
9.2s
0-60 mph
3.5s
Calculated
3.2s
Calculated
Fuel consumption
13.2L/100 km17.8mpg US21.4mpg UK
11.7L/100 km20.1mpg US24.1mpg UK
Fuel consumption city
19.9L/100 km11.8mpg US14.2mpg UK
-
Fuel consumption highway
9.3L/100 km25.3mpg US30.4mpg UK
-
Quarter mile
11.4s
Calculated
10.9s
Calculated
Power-to-weight
356hp/t265kW/t161hp/1000 lb
Calculated
424hp/t316kW/t192hp/1000 lb
Calculated
Torque-to-weight
392Nm/t262lb-ft/ton
Calculated
407Nm/t272lb-ft/ton
Calculated
Estimated range
644km400mi
Calculated
615km382mi
Calculated
Displacement
6,208cc379cu in
3,799cc232cu in
Length
4,638mm183in
4,509mm178in
Width
1,939mm76in
1,908mm75in
Height
1,261mm50in
1,203mm47in
Wheelbase
2,680mm106in
2,670mm105in
Front track
1,682mm66in
1,656mm65in
Rear track
1,651mm65in
1,583mm62in
Ground clearance-
120mm5in
Trunk volume
173L
-
Doors
2
2
Seats
2
2
Fuel tank
85L
72L
CO2 emissions-
279g/km

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 SLS AMG Roadster (R197) GT 6.2 V8McLaren MP4-12C Spider 3.8 V8PowerTorque
  • Mercedes-Benz SLS AMG Roadster (R197) GT 6.2 V8: Power / Torque
  • McLaren MP4-12C Spider 3.8 V8: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Mercedes-BenzSLS AMG Roadster (R197)GT 6.2 V86,800 rpm4,750 rpm7,200 rpm
McLarenMP4-12C Spider3.8 V87,500 rpm3,000-7,000 rpm8,500 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricMercedes-BenzSLS AMG Roadster (R197)GT 6.2 V8McLarenMP4-12C Spider3.8 V8
Acceleration checkpoints
0-60 mph
0-97 km/h
3.5 s
3.2 s
0-100 km/h
0-62 mph
3.7 s
3.3 s
0-200 km/h
0-124 mph
10.4 s
9.2 s
0-200 mph
0-322 km/h
46.3 s
42.1 s
Top speed
Unrestricted
330 km/h205 mph
Restricted
320 km/h199 mph
Likely limited
329 km/h
204 mph
Drag race simulation
60 ft
18 m
2.0 s
1.9 s
330 ft
101 m
5.1 s
4.9 s
1/8 mile
201 m
7.6 s
7.2 s
1000 ft
305 m
9.6 s
9.2 s
1/4 mile
402 m
11.4 s
10.9 s
Trap speed
1/4 mile
402 m
211 km/h
131 mph
219 km/h
136 mph

Power comparison

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

Chart data table
VehicleValue
Mercedes-BenzSLS AMG Roadster (R197)GT 6.2 V8
591 hp
441 kW
McLarenMP4-12C Spider3.8 V8
625 hp
466 kW

McLaren MP4-12C Spider 3.8 V8 has 34 hp more than Mercedes-Benz SLS AMG Roadster (R197) GT 6.2 V8.

The biggest power difference is between Mercedes-Benz SLS AMG Roadster (R197) GT 6.2 V8 and McLaren MP4-12C Spider 3.8 V8: 34 hp (25 kW).

Torque comparison

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

Chart data table
VehicleValue
Mercedes-BenzSLS AMG Roadster (R197)GT 6.2 V8
650 Nm
479 lb-ft
McLarenMP4-12C Spider3.8 V8
600 Nm
443 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
Mercedes-BenzSLS AMG Roadster (R197)GT 6.2 V8
1,660 kg
3,660 lb
McLarenMP4-12C Spider3.8 V8
1,474 kg
3,250 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-BenzSLS AMG Roadster (R197)GT 6.2 V8
Unrestricted
330 km/h205 mph
Restricted
320 km/h199 mph
McLarenMP4-12C Spider3.8 V8
329 km/h
204 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
Mercedes-BenzSLS AMG Roadster (R197)GT 6.2 V83.7 s
McLarenMP4-12C Spider3.8 V83.3 s

The biggest 0-100 km/h difference is between McLaren MP4-12C Spider 3.8 V8 and Mercedes-Benz SLS AMG Roadster (R197) GT 6.2 V8: 0.4 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-BenzSLS AMG Roadster (R197)GT 6.2 V8
13.2 L/100 km
17.8 mpg US
21.4 mpg UK
McLarenMP4-12C Spider3.8 V8
11.7 L/100 km
20.1 mpg US
24.1 mpg UK

The biggest fuel consumption difference is between McLaren MP4-12C Spider 3.8 V8 and Mercedes-Benz SLS AMG Roadster (R197) GT 6.2 V8: 1.5 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-BenzSLS AMG Roadster (R197)GT 6.2 V8
356 hp/t
265 kW/t
2.8 kg/hp
McLarenMP4-12C Spider3.8 V8
424 hp/t
316 kW/t
2.4 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
Mercedes-BenzSLS AMG Roadster (R197)GT 6.2 V8
644 km
400 mi
McLarenMP4-12C Spider3.8 V8
615 km
382 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Mercedes-BenzSLS AMG Roadster (R197)GT 6.2 V8
591 hp
441 kW
3.7 s
Unrestricted
330 km/h205 mph
Restricted
320 km/h199 mph
McLarenMP4-12C Spider3.8 V8
625 hp
466 kW
3.3 s
329 km/h
204 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-BenzSLS AMG Roadster (R197)GT 6.2 V8
Power
591 hp
441 kW
0-100 km/h3.7 s
Top speed
Unrestricted
330 km/h205 mph
Restricted
320 km/h199 mph
Doors/seats
2 doors
2 seats
Trunk
173 L
6.1 cu ft
Length
4,638 mm
182.6 in
Height
1,261 mm
49.6 in
McLarenMP4-12C Spider3.8 V8
Power
625 hp
466 kW
0-100 km/h3.3 s
Top speed
329 km/h
204 mph
Doors/seats
2 doors
2 seats
Trunk-
Length
4,509 mm
177.5 in
Height
1,203 mm
47.4 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-BenzSLS AMG Roadster (R197)GT 6.2 V8
Power
591 hp
441 kW
0-100 km/h3.7 s
Top speed
Unrestricted
330 km/h205 mph
Restricted
320 km/h199 mph
13.2 L/100 km
17.8 mpg US
21.4 mpg UK
McLarenMP4-12C Spider3.8 V8
Power
625 hp
466 kW
0-100 km/h3.3 s
Top speed
329 km/h
204 mph
11.7 L/100 km
20.1 mpg US
24.1 mpg UK

McLaren MP4-12C Spider 3.8 V8 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-BenzSLS AMG Roadster (R197)GT 6.2 V8
13.2 L/100 km
17.8 mpg US
21.4 mpg UK
3.7 s
McLarenMP4-12C Spider3.8 V8
11.7 L/100 km
20.1 mpg US
24.1 mpg UK
3.3 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-BenzSLS AMG Roadster (R197)GT 6.2 V8
356 hp/t
265 kW/t
2.8 kg/hp
13.2 L/100 km
17.8 mpg US
21.4 mpg UK
McLarenMP4-12C Spider3.8 V8
424 hp/t
316 kW/t
2.4 kg/hp
11.7 L/100 km
20.1 mpg US
24.1 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleMercedes-BenzSLS AMG Roadster (R197)GT 6.2 V8McLarenMP4-12C Spider3.8 V8
Power
591 hp
441 kW
625 hp
466 kW
Torque
650 Nm
479 lb-ft
600 Nm
443 lb-ft
Acceleration
3.7 s
3.3 s
Top speed
Unrestricted
330 km/h205 mph
Restricted
320 km/h199 mph
329 km/h
204 mph
Lightness
1,660 kg
3,660 lb
1,474 kg
3,250 lb
Fuel consumption
13.2 L/100 km
17.8 mpg US
21.4 mpg UK
11.7 L/100 km
20.1 mpg US
24.1 mpg UK
Practicality
Doors/seats
2 doors
2 seats
Trunk
173 L
6.1 cu ft
Length
4,638 mm
182.6 in
Height
1,261 mm
49.6 in
Doors/seats
2 doors
2 seats
Trunk-
Length
4,509 mm
177.5 in
Height
1,203 mm
47.4 in
Range score
644 km
400 mi
615 km
382 mi
CO2 score
-
279 g/km
Trunk score
173 L
6.1 cu ft
-
Power-to-weight score
356 hp/t
265 kW/t
2.8 kg/hp
424 hp/t
316 kW/t
2.4 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 SLS AMG Roadster (R197) GT 6.2 V8McLaren MP4-12C Spider 3.8 V8
Consumption13.2 L/100 km17.8 mpg US21.4 mpg UK11.7 L/100 km20.1 mpg US24.1 mpg UK
Cost / 100 km23.10 LC100 km20.47 LC100 km
Cost / 100 mi37.18 LC100 mi32.95 LC100 mi
Annual fuel used1,980 L523 US gal436 UK gal1,755 L464 US gal386 UK gal
Annual fuel cost3,465 LC/year3,071 LC/year

Head-to-head comparisons

Mercedes-Benz SLS AMG Roadster (R197) GT 6.2 V8

  • Has 50 Nm more
  • Has 1 km/h (1 mph) higher top speed
  • Has 29 km (18 mi) more estimated range

Pros

  • Highest top speed
  • Highest torque
  • Best estimated range

Cons

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

McLaren MP4-12C Spider 3.8 V8

  • Has 34 hp more
  • Is 186 kg lighter
  • Is 0.4 s quicker from 0-100 km/h
  • Uses 1.5 L/100 km less fuel
  • Has 68 hp/t better power-to-weight

Pros

  • Quickest 0-100 km/h in this comparison
  • Most powerful
  • Lightest
  • Lowest combined fuel consumption
  • Best power-to-weight ratio

Cons

  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
Mercedes-Benz SLS AMG Roadster (R197) GT 6.2 V8
McLaren MP4-12C Spider 3.8 V8
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