Car comparison

Mercedes-Benz SLK (R171) · Facelift 2008 SLK 350 V6vsWiesmann Roadster MF3 3.2i 24V

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

New comparison

Mercedes-Benz SLK (R171) · Facelift 2008

SLK 350 V6

305 hp3498 ccGasolineRWDManualNaturally aspiratedRoadster2008-2011

Wiesmann Roadster MF3

3.2i 24V

325 hp3246 ccGasolineRWDManualNaturally aspiratedRoadster2005-2014

Comparison overview

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

Wiesmann Roadster MF3 3.2i 24V

Quickest 0-100 km/h
4.9 s
Most powerful
325 hp
242 kW
Lightest
1,180 kg
2,601 lb
Best power-to-weight
275 hp/t
205 kW/t
3.6 kg/hp
Best overall score
57/100
Best performance score
69/100
Best practicality score
30/100

Mercedes-Benz SLK (R171) Facelift 2008 SLK 350 V6

Fastest top speed
270 km/h
168 mph Unrestricted
250 km/h
155 mph Restricted
Highest torque
360 Nm
266 lb-ft
Lowest combined fuel consumption
9.7 L/100 km
24.2 mpg US
29.1 mpg UK
Best estimated range
722 km
448 mi
Best economy score
81/100

Specification comparison

Specification comparison
Model	Mercedes-BenzSLK (R171)Facelift 2008SLK 350 V6	WiesmannRoadster MF33.2i 24V
Power	305hp227kW	325hp242kW
Torque	360Nm266lb-ft	350Nm258lb-ft
Curb weight	1,430kg3,153lb	1,180kg2,601lb
Gross weight	1,800kg3,968lb	-
Top speed	Unrestricted 270 km/h168 mph Restricted 250 km/h155 mph Calculated	255 km/h 158 mph
To 99% top speed	70.5s99% target: 267 km/h / 166 mph Calculated	51.7s99% target: 252 km/h / 157 mph Calculated
0-100 km/h	5.4s	4.9s
0-200 km/h	17.9s Calculated	16.1s Calculated
0-60 mph	5.1s Calculated	4.7s Calculated
Fuel consumption	9.7L/100 km24.2mpg US29.1mpg UK	11L/100 km21.4mpg US25.7mpg UK
Fuel consumption city	14.5L/100 km16.2mpg US19.5mpg UK	-
Fuel consumption highway	7L/100 km33.6mpg US40.4mpg UK	-
Quarter mile	13.4s Calculated	12.9s Calculated
Power-to-weight	213hp/t159kW/t97hp/1000 lb Calculated	275hp/t205kW/t125hp/1000 lb Calculated
Torque-to-weight	252Nm/t168lb-ft/ton Calculated	297Nm/t198lb-ft/ton Calculated
Estimated range	722km448mi Calculated	545km339mi Calculated
Displacement	3,498cc213cu in	3,246cc198cu in
Length	4,107mm162in	3,860mm152in
Width	1,788mm70in	1,750mm69in
Height	1,298mm51in	1,160mm46in
Wheelbase	2,430mm96in	2,990mm118in
Front track	1,526mm60in	1,450mm57in
Rear track	1,549mm61in	1,520mm60in
Trunk volume	208L	-
Doors	2	2
Seats	2	2
Fuel tank	70L	60L

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 SLK (R171) Facelift 2008 SLK 350 V6Wiesmann Roadster MF3 3.2i 24VPowerTorque

Dyno simulation data table
Vehicle	Peak power RPM	Peak torque RPM	Max engine speed
Mercedes-BenzSLK (R171)Facelift 2008SLK 350 V6	6,500 rpm	4,900 rpm	6,750 rpm
WiesmannRoadster MF33.2i 24V	7,400 rpm	4,900 rpm	7,650 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
Metric	Mercedes-BenzSLK (R171)Facelift 2008SLK 350 V6	WiesmannRoadster MF33.2i 24V
	Acceleration checkpoints
0-60 mph 0-97 km/h	5.1 s	4.7 s
0-100 km/h 0-62 mph	5.4 s	4.9 s
0-200 km/h 0-124 mph	17.9 s	16.1 s
Top speed	Unrestricted 270 km/h168 mph Restricted 250 km/h155 mph Limited	255 km/h 158 mph
	Drag race simulation
60 ft 18 m	2.3 s	2.3 s
330 ft 101 m	5.9 s	5.7 s
1/8 mile 201 m	8.9 s	8.5 s
1000 ft 305 m	11.4 s	10.9 s
1/4 mile 402 m	13.4 s	12.9 s
Trap speed 1/4 mile 402 m	175 km/h 109 mph	182 km/h 113 mph

Power comparison

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

Chart data table
Vehicle	Value
Mercedes-BenzSLK (R171)Facelift 2008SLK 350 V6	305 hp 227 kW
WiesmannRoadster MF33.2i 24V	325 hp 242 kW

Wiesmann Roadster MF3 3.2i 24V has 20 hp more than Mercedes-Benz SLK (R171) Facelift 2008 SLK 350 V6.

The biggest power difference is between Mercedes-Benz SLK (R171) Facelift 2008 SLK 350 V6 and Wiesmann Roadster MF3 3.2i 24V: 20 hp (15 kW).

Torque comparison

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

Chart data table
Vehicle	Value
Mercedes-BenzSLK (R171)Facelift 2008SLK 350 V6	360 Nm 266 lb-ft
WiesmannRoadster MF33.2i 24V	350 Nm 258 lb-ft

Curb weight comparison

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

Chart data table
Vehicle	Value
Mercedes-BenzSLK (R171)Facelift 2008SLK 350 V6	1,430 kg 3,153 lb
WiesmannRoadster MF33.2i 24V	1,180 kg 2,601 lb

Top speed without limiter comparison

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

Chart data table
Vehicle	Value
Mercedes-BenzSLK (R171)Facelift 2008SLK 350 V6	Unrestricted 270 km/h168 mph Restricted 250 km/h155 mph
WiesmannRoadster MF33.2i 24V	255 km/h 158 mph

0-100 km/h comparison

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

Chart data table
Vehicle	Value
Mercedes-BenzSLK (R171)Facelift 2008SLK 350 V6	5.4 s
WiesmannRoadster MF33.2i 24V	4.9 s

The biggest 0-100 km/h difference is between Wiesmann Roadster MF3 3.2i 24V and Mercedes-Benz SLK (R171) Facelift 2008 SLK 350 V6: 0.5 s.

Fuel consumption comparison

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

Chart data table
Vehicle	Value
Mercedes-BenzSLK (R171)Facelift 2008SLK 350 V6	9.7 L/100 km 24.2 mpg US 29.1 mpg UK
WiesmannRoadster MF33.2i 24V	11.0 L/100 km 21.4 mpg US 25.7 mpg UK

The biggest fuel consumption difference is between Mercedes-Benz SLK (R171) Facelift 2008 SLK 350 V6 and Wiesmann Roadster MF3 3.2i 24V: 1.3 L/100 km.

Power-to-weight comparison

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

Chart data table
Vehicle	Value
Mercedes-BenzSLK (R171)Facelift 2008SLK 350 V6	213 hp/t 159 kW/t 4.7 kg/hp
WiesmannRoadster MF33.2i 24V	275 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
Vehicle	Value
Mercedes-BenzSLK (R171)Facelift 2008SLK 350 V6	722 km 448 mi
WiesmannRoadster MF33.2i 24V	545 km 339 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
Vehicle	Power	Acceleration	Top speed
Mercedes-BenzSLK (R171)Facelift 2008SLK 350 V6	305 hp 227 kW	5.4 s	Unrestricted 270 km/h168 mph Restricted 250 km/h155 mph
WiesmannRoadster MF33.2i 24V	325 hp 242 kW	4.9 s	255 km/h 158 mph

Most attractive quadrant

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

Vehicle

Performance score

Practicality score

Mercedes-BenzSLK (R171)Facelift 2008SLK 350 V6

Power	305 hp 227 kW
0-100 km/h	5.4 s
Top speed Unrestricted 270 km/h168 mph Restricted 250 km/h155 mph

Doors/seats	2 doors 2 seats
Trunk	208 L 7.3 cu ft
Length	4,107 mm 161.7 in
Height	1,298 mm 51.1 in

WiesmannRoadster MF33.2i 24V

Power	325 hp 242 kW
0-100 km/h	4.9 s
Top speed 255 km/h 158 mph

Doors/seats	2 doors 2 seats
Trunk	-
Length	3,860 mm 152.0 in
Height	1,160 mm 45.7 in

Performance vs fuel economy

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

Vehicle

Performance score

Fuel economy score

Mercedes-BenzSLK (R171)Facelift 2008SLK 350 V6

Power	305 hp 227 kW
0-100 km/h	5.4 s
Top speed Unrestricted 270 km/h168 mph Restricted 250 km/h155 mph

9.7 L/100 km

24.2 mpg US

29.1 mpg UK

WiesmannRoadster MF33.2i 24V

Power	325 hp 242 kW
0-100 km/h	4.9 s
Top speed 255 km/h 158 mph

11.0 L/100 km

21.4 mpg US

25.7 mpg UK

Mercedes-Benz SLK (R171) Facelift 2008 SLK 350 V6 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
Vehicle	Fuel consumption, L/100 km	0-100 km/h, s
Mercedes-BenzSLK (R171)Facelift 2008SLK 350 V6	9.7 L/100 km 24.2 mpg US 29.1 mpg UK	5.4 s
WiesmannRoadster MF33.2i 24V	11.0 L/100 km 21.4 mpg US 25.7 mpg UK	4.9 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
Vehicle	Power-to-weight, hp/t	Fuel consumption, L/100 km
Mercedes-BenzSLK (R171)Facelift 2008SLK 350 V6	213 hp/t 159 kW/t 4.7 kg/hp	9.7 L/100 km 24.2 mpg US 29.1 mpg UK
WiesmannRoadster MF33.2i 24V	275 hp/t 205 kW/t 3.6 kg/hp	11.0 L/100 km 21.4 mpg US 25.7 mpg UK

Detailed score breakdown

Vehicle

Mercedes-BenzSLK (R171)Facelift 2008SLK 350 V6

WiesmannRoadster MF33.2i 24V

Power

305 hp

227 kW

325 hp

242 kW

Torque

360 Nm

266 lb-ft

350 Nm

258 lb-ft

Acceleration

5.4 s

4.9 s

Top speed

Unrestricted

270 km/h168 mph

Restricted

250 km/h155 mph

255 km/h

158 mph

Lightness

1,430 kg

3,153 lb

1,180 kg

2,601 lb

Fuel consumption

9.7 L/100 km

24.2 mpg US

29.1 mpg UK

11.0 L/100 km

21.4 mpg US

25.7 mpg UK

Practicality

Doors/seats	2 doors 2 seats
Trunk	208 L 7.3 cu ft
Length	4,107 mm 161.7 in
Height	1,298 mm 51.1 in

Doors/seats	2 doors 2 seats
Trunk	-
Length	3,860 mm 152.0 in
Height	1,160 mm 45.7 in

Range score

722 km

448 mi

545 km

339 mi

Trunk score

208 L

7.3 cu ft

Power-to-weight score

213 hp/t

159 kW/t

4.7 kg/hp

275 hp/t

205 kW/t

3.6 kg/hp

Overall

Fixed score

Fuel cost and annual usage

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

Average annual distanceDistance unitFuel price in your local currencyPrice unit

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
Vehicle	Mercedes-Benz SLK (R171) Facelift 2008 SLK 350 V6	Wiesmann Roadster MF3 3.2i 24V
Consumption	9.7 L/100 km24.2 mpg US29.1 mpg UK	11 L/100 km21.4 mpg US25.7 mpg UK
Cost / 100 km	16.97 LC100 km	19.25 LC100 km
Cost / 100 mi	27.32 LC100 mi	30.98 LC100 mi
Annual fuel used	1,455 L384 US gal320 UK gal	1,650 L436 US gal363 UK gal
Annual fuel cost	2,546 LC/year	2,888 LC/year