Car comparison

Wiesmann Roadster MF4 S 4.0 V8vsMercedes-Benz SLK (R172) AMG SLK 55 V8

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

New comparison

Wiesmann Roadster MF4

S 4.0 V8

420 hp3999 ccGasolineRWDManualNaturally aspiratedRoadster2009-2014
VS

Mercedes-Benz SLK (R172)

AMG SLK 55 V8

421 hp5461 ccGasolineRWDAutomaticNaturally aspiratedRoadster2012-2015

Comparison overview

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

Best choices

Mercedes-Benz SLK (R172) AMG SLK 55 V8

  • Most powerful
    421 hp
    314 kW
  • Highest torque
    540 Nm
    398 lb-ft
  • Lowest combined fuel consumption
    8.4 L/100 km
    28.0 mpg US
    33.6 mpg UK
  • Lowest city consumption
    12.0 L/100 km
    19.6 mpg US
    23.5 mpg UK
  • Lowest highway consumption
    6.2 L/100 km
    37.9 mpg US
    45.6 mpg UK
  • Lowest CO2 emissions
    195 g/km
  • Best estimated range
    833 km
    518 mi
  • Best economy score
    84/100

Wiesmann Roadster MF4 S 4.0 V8

  • Quickest 0-100 km/h
    4.4 s
  • Fastest top speed
    293 km/h
    182 mph
  • Lightest
    1,390 kg
    3,064 lb
  • Best power-to-weight
    302 hp/t
    225 kW/t
    3.3 kg/hp
  • Best overall score
    63/100
  • Best performance score
    78/100
  • Best practicality score
    31/100

Specification comparison

Specification comparison
ModelWiesmannRoadster MF4S 4.0 V8Mercedes-BenzSLK (R172)AMG SLK 55 V8
Power
420hp313kW
421hp314kW
Torque
400Nm295lb-ft
540Nm398lb-ft
Curb weight
1,390kg3,064lb
1,535kg3,384lb
Gross weight-
1,910kg4,211lb
Top speed
293 km/h
182 mph
Unrestricted
270 km/h168 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
57.1s99% target: 290 km/h / 180 mph
Calculated
58.1s99% target: 267 km/h / 166 mph
Calculated
0-100 km/h
4.4s
4.6s
0-200 km/h
13.0s
Calculated
15.0s
Calculated
0-60 mph
4.2s
Calculated
4.4s
Calculated
Fuel consumption
12.4L/100 km19mpg US22.8mpg UK
8.4L/100 km28mpg US33.6mpg UK
Fuel consumption city
17.9L/100 km13.1mpg US15.8mpg UK
12L/100 km19.6mpg US23.5mpg UK
Fuel consumption highway
9.2L/100 km25.6mpg US30.7mpg UK
6.2L/100 km37.9mpg US45.6mpg UK
Quarter mile
12.3s
Calculated
12.6s
Calculated
Power-to-weight
302hp/t225kW/t137hp/1000 lb
Calculated
274hp/t205kW/t124hp/1000 lb
Calculated
Torque-to-weight
288Nm/t193lb-ft/ton
Calculated
352Nm/t235lb-ft/ton
Calculated
Estimated range
565km351mi
Calculated
833km518mi
Calculated
Displacement
3,999cc244cu in
5,461cc333cu in
Length
4,230mm167in
4,134mm163in
Width
1,880mm74in
1,810mm71in
Height
1,190mm47in
1,301mm51in
Wheelbase
2,507mm99in
2,430mm96in
Front track-
1,559mm61in
Rear track-
1,565mm62in
Trunk volume-
225L
Max trunk volume-
335L
Doors
2
2
Seats
2
2
Fuel tank
70L
70L
CO2 emissions
295g/km
195g/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.

Wiesmann Roadster MF4 S 4.0 V8Mercedes-Benz SLK (R172) AMG SLK 55 V8PowerTorque
  • Wiesmann Roadster MF4 S 4.0 V8: Power / Torque
  • Mercedes-Benz SLK (R172) AMG SLK 55 V8: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
WiesmannRoadster MF4S 4.0 V88,300 rpm3,900 rpm8,550 rpm
Mercedes-BenzSLK (R172)AMG SLK 55 V86,800 rpm4,500 rpm7,050 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricWiesmannRoadster MF4S 4.0 V8Mercedes-BenzSLK (R172)AMG SLK 55 V8
Acceleration checkpoints
0-60 mph
0-97 km/h
4.2 s
4.4 s
0-100 km/h
0-62 mph
4.4 s
4.6 s
0-200 km/h
0-124 mph
13.0 s
15.0 s
Top speed
293 km/h
182 mph
Unrestricted
270 km/h168 mph
Restricted
250 km/h155 mph
Limited
Drag race simulation
60 ft
18 m
2.2 s
2.2 s
330 ft
101 m
5.5 s
5.6 s
1/8 mile
201 m
8.1 s
8.3 s
1000 ft
305 m
10.4 s
10.7 s
1/4 mile
402 m
12.3 s
12.6 s
Trap speed
1/4 mile
402 m
195 km/h
121 mph
185 km/h
115 mph

Power comparison

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

Chart data table
VehicleValue
WiesmannRoadster MF4S 4.0 V8
420 hp
313 kW
Mercedes-BenzSLK (R172)AMG SLK 55 V8
421 hp
314 kW

Mercedes-Benz SLK (R172) AMG SLK 55 V8 has 1 hp more than Wiesmann Roadster MF4 S 4.0 V8.

The biggest power difference is between Wiesmann Roadster MF4 S 4.0 V8 and Mercedes-Benz SLK (R172) AMG SLK 55 V8: 1 hp (1 kW).

Torque comparison

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

Chart data table
VehicleValue
WiesmannRoadster MF4S 4.0 V8
400 Nm
295 lb-ft
Mercedes-BenzSLK (R172)AMG SLK 55 V8
540 Nm
398 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
WiesmannRoadster MF4S 4.0 V8
1,390 kg
3,064 lb
Mercedes-BenzSLK (R172)AMG SLK 55 V8
1,535 kg
3,384 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
WiesmannRoadster MF4S 4.0 V8
293 km/h
182 mph
Mercedes-BenzSLK (R172)AMG SLK 55 V8
Unrestricted
270 km/h168 mph
Restricted
250 km/h155 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
WiesmannRoadster MF4S 4.0 V84.4 s
Mercedes-BenzSLK (R172)AMG SLK 55 V84.6 s

Although Mercedes-Benz SLK (R172) AMG SLK 55 V8 has more power, Wiesmann Roadster MF4 S 4.0 V8 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Wiesmann Roadster MF4 S 4.0 V8 and Mercedes-Benz SLK (R172) AMG SLK 55 V8: 0.2 s.

Fuel consumption comparison

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

Chart data table
VehicleValue
WiesmannRoadster MF4S 4.0 V8
12.4 L/100 km
19.0 mpg US
22.8 mpg UK
Mercedes-BenzSLK (R172)AMG SLK 55 V8
8.4 L/100 km
28.0 mpg US
33.6 mpg UK

The biggest fuel consumption difference is between Mercedes-Benz SLK (R172) AMG SLK 55 V8 and Wiesmann Roadster MF4 S 4.0 V8: 4.0 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
WiesmannRoadster MF4S 4.0 V8
302 hp/t
225 kW/t
3.3 kg/hp
Mercedes-BenzSLK (R172)AMG SLK 55 V8
274 hp/t
205 kW/t
3.6 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
WiesmannRoadster MF4S 4.0 V8
565 km
351 mi
Mercedes-BenzSLK (R172)AMG SLK 55 V8
833 km
518 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
WiesmannRoadster MF4S 4.0 V8
420 hp
313 kW
4.4 s
293 km/h
182 mph
Mercedes-BenzSLK (R172)AMG SLK 55 V8
421 hp
314 kW
4.6 s
Unrestricted
270 km/h168 mph
Restricted
250 km/h155 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
WiesmannRoadster MF4S 4.0 V8
Power
420 hp
313 kW
0-100 km/h4.4 s
Top speed
293 km/h
182 mph
Doors/seats
2 doors
2 seats
Trunk-
Length
4,230 mm
166.5 in
Height
1,190 mm
46.9 in
Mercedes-BenzSLK (R172)AMG SLK 55 V8
Power
421 hp
314 kW
0-100 km/h4.6 s
Top speed
Unrestricted
270 km/h168 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
2 seats
Trunk
225 L
7.9 cu ft
Length
4,134 mm
162.8 in
Height
1,301 mm
51.2 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
WiesmannRoadster MF4S 4.0 V8
Power
420 hp
313 kW
0-100 km/h4.4 s
Top speed
293 km/h
182 mph
12.4 L/100 km
19.0 mpg US
22.8 mpg UK
Mercedes-BenzSLK (R172)AMG SLK 55 V8
Power
421 hp
314 kW
0-100 km/h4.6 s
Top speed
Unrestricted
270 km/h168 mph
Restricted
250 km/h155 mph
8.4 L/100 km
28.0 mpg US
33.6 mpg UK

Mercedes-Benz SLK (R172) AMG SLK 55 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
WiesmannRoadster MF4S 4.0 V8
12.4 L/100 km
19.0 mpg US
22.8 mpg UK
4.4 s
Mercedes-BenzSLK (R172)AMG SLK 55 V8
8.4 L/100 km
28.0 mpg US
33.6 mpg UK
4.6 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
WiesmannRoadster MF4S 4.0 V8
302 hp/t
225 kW/t
3.3 kg/hp
12.4 L/100 km
19.0 mpg US
22.8 mpg UK
Mercedes-BenzSLK (R172)AMG SLK 55 V8
274 hp/t
205 kW/t
3.6 kg/hp
8.4 L/100 km
28.0 mpg US
33.6 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleWiesmannRoadster MF4S 4.0 V8Mercedes-BenzSLK (R172)AMG SLK 55 V8
Power
420 hp
313 kW
421 hp
314 kW
Torque
400 Nm
295 lb-ft
540 Nm
398 lb-ft
Acceleration
4.4 s
4.6 s
Top speed
293 km/h
182 mph
Unrestricted
270 km/h168 mph
Restricted
250 km/h155 mph
Lightness
1,390 kg
3,064 lb
1,535 kg
3,384 lb
Fuel consumption
12.4 L/100 km
19.0 mpg US
22.8 mpg UK
8.4 L/100 km
28.0 mpg US
33.6 mpg UK
Practicality
Doors/seats
2 doors
2 seats
Trunk-
Length
4,230 mm
166.5 in
Height
1,190 mm
46.9 in
Doors/seats
2 doors
2 seats
Trunk
225 L
7.9 cu ft
Length
4,134 mm
162.8 in
Height
1,301 mm
51.2 in
Range score
565 km
351 mi
833 km
518 mi
CO2 score
295 g/km
195 g/km
Trunk score
-
225 L
7.9 cu ft
Power-to-weight score
302 hp/t
225 kW/t
3.3 kg/hp
274 hp/t
205 kW/t
3.6 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
VehicleWiesmann Roadster MF4 S 4.0 V8Mercedes-Benz SLK (R172) AMG SLK 55 V8
Consumption12.4 L/100 km19 mpg US22.8 mpg UK8.4 L/100 km28 mpg US33.6 mpg UK
Cost / 100 km21.70 LC100 km14.70 LC100 km
Cost / 100 mi34.92 LC100 mi23.66 LC100 mi
Annual fuel used1,860 L491 US gal409 UK gal1,260 L333 US gal277 UK gal
Annual fuel cost3,255 LC/year2,205 LC/year

Head-to-head comparisons

Wiesmann Roadster MF4 S 4.0 V8

  • Is 145 kg lighter
  • Is 0.2 s quicker from 0-100 km/h
  • Has 23 km/h (14 mph) higher top speed
  • Has 28 hp/t better power-to-weight

Pros

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

Cons

  • Lowest power
  • Highest combined fuel consumption
  • Highest CO2 emissions

Mercedes-Benz SLK (R172) AMG SLK 55 V8

  • Has 1 hp more
  • Has 140 Nm more
  • Uses 4.0 L/100 km less fuel
  • Has 269 km (167 mi) more estimated range
  • Emits 100 g/km less CO2

Pros

  • Most powerful
  • Highest torque
  • Lowest combined fuel consumption
  • Best estimated range

Cons

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

Choose cars to compare

Brand
Model
Generation
Engine or modification
Wiesmann Roadster MF4 S 4.0 V8
Mercedes-Benz SLK (R172) AMG SLK 55 V8
Compare selected cars
2 vehicles selected

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