Car comparison

Mercedes-Benz SLK (R171) · Facelift 2008 SLK 350 V6vsNissan 370Z Roadster · Facelift 2012 3.7 V6

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
VS

Nissan 370Z Roadster · Facelift 2012

3.7 V6

328 hp3696 ccGasolineRWDAutomaticNaturally aspiratedRoadster2012-2017

Comparison overview

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

Best choices

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

  • Quickest 0-100 km/h
    5.4 s
  • Fastest top speed
    270 km/h
    168 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Lightest
    1,430 kg
    3,153 lb
  • Best power-to-weight
    213 hp/t
    159 kW/t
    4.7 kg/hp
  • Lowest combined fuel consumption
    9.7 L/100 km
    24.2 mpg US
    29.1 mpg UK
  • Lowest city consumption
    14.5 L/100 km
    16.2 mpg US
    19.5 mpg UK
  • Lowest highway consumption
    7.0 L/100 km
    33.6 mpg US
    40.4 mpg UK
  • Best estimated range
    722 km
    448 mi
  • Largest trunk
    208 L
  • Best overall score
    55/100
  • Best performance score
    67/100
  • Best economy score
    81/100
  • Best practicality score
    29/100

Specification comparison

Specification comparison
ModelMercedes-BenzSLK (R171)Facelift 2008SLK 350 V6Nissan370Z RoadsterFacelift 20123.7 V6
Power
305hp227kW
328hp245kW
Torque
360Nm266lb-ft
363Nm268lb-ft
Curb weight
1,430kg3,153lb
1,574kg3,470lb
Gross weight
1,800kg3,968lb
1,885kg4,156lb
Top speed
Unrestricted
270 km/h168 mph
Restricted
250 km/h155 mph
Calculated
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
70.5s99% target: 267 km/h / 166 mph
Calculated
77.9s99% target: 262 km/h / 163 mph
Calculated
0-100 km/h
5.4s
5.8s
0-200 km/h
17.9s
Calculated
20.1s
Calculated
0-60 mph
5.1s
Calculated
5.5s
Calculated
Fuel consumption
9.7L/100 km24.2mpg US29.1mpg UK
10.9L/100 km21.6mpg US25.9mpg UK
Fuel consumption city
14.5L/100 km16.2mpg US19.5mpg UK
15.8L/100 km14.9mpg US17.9mpg UK
Fuel consumption highway
7L/100 km33.6mpg US40.4mpg UK
8.1L/100 km29mpg US34.9mpg UK
Quarter mile
13.4s
Calculated
13.9s
Calculated
Power-to-weight
213hp/t159kW/t97hp/1000 lb
Calculated
208hp/t155kW/t95hp/1000 lb
Calculated
Torque-to-weight
252Nm/t168lb-ft/ton
Calculated
231Nm/t154lb-ft/ton
Calculated
Estimated range
722km448mi
Calculated
661km410mi
Calculated
Displacement
3,498cc213cu in
3,696cc226cu in
Length
4,107mm162in
4,250mm167in
Width
1,788mm70in
1,845mm73in
Height
1,298mm51in
1,325mm52in
Wheelbase
2,430mm96in
2,550mm100in
Front track
1,526mm60in
1,550mm61in
Rear track
1,549mm61in
1,595mm63in
Trunk volume
208L
140L
Doors
2
2
Seats
2
2
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.

Mercedes-Benz SLK (R171) Facelift 2008 SLK 350 V6Nissan 370Z Roadster Facelift 2012 3.7 V6PowerTorque
  • Mercedes-Benz SLK (R171) Facelift 2008 SLK 350 V6: Power / Torque
  • Nissan 370Z Roadster Facelift 2012 3.7 V6: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Mercedes-BenzSLK (R171)Facelift 2008SLK 350 V66,500 rpm4,900 rpm6,750 rpm
Nissan370Z RoadsterFacelift 20123.7 V67,000 rpm5,200 rpm7,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricMercedes-BenzSLK (R171)Facelift 2008SLK 350 V6Nissan370Z RoadsterFacelift 20123.7 V6
Acceleration checkpoints
0-60 mph
0-97 km/h
5.1 s
5.5 s
0-100 km/h
0-62 mph
5.4 s
5.8 s
0-200 km/h
0-124 mph
17.9 s
20.1 s
Top speed
Unrestricted
270 km/h168 mph
Restricted
250 km/h155 mph
Limited
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Limited
Drag race simulation
60 ft
18 m
2.3 s
2.3 s
330 ft
101 m
5.9 s
6.1 s
1/8 mile
201 m
8.9 s
9.1 s
1000 ft
305 m
11.4 s
11.7 s
1/4 mile
402 m
13.4 s
13.9 s
Trap speed
1/4 mile
402 m
175 km/h
109 mph
169 km/h
105 mph

Power comparison

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

Chart data table
VehicleValue
Mercedes-BenzSLK (R171)Facelift 2008SLK 350 V6
305 hp
227 kW
Nissan370Z RoadsterFacelift 20123.7 V6
328 hp
245 kW

Nissan 370Z Roadster Facelift 2012 3.7 V6 has 23 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 Nissan 370Z Roadster Facelift 2012 3.7 V6: 23 hp (17 kW).

Torque comparison

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

Chart data table
VehicleValue
Mercedes-BenzSLK (R171)Facelift 2008SLK 350 V6
360 Nm
266 lb-ft
Nissan370Z RoadsterFacelift 20123.7 V6
363 Nm
268 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
Mercedes-BenzSLK (R171)Facelift 2008SLK 350 V6
1,430 kg
3,153 lb
Nissan370Z RoadsterFacelift 20123.7 V6
1,574 kg
3,470 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-BenzSLK (R171)Facelift 2008SLK 350 V6
Unrestricted
270 km/h168 mph
Restricted
250 km/h155 mph
Nissan370Z RoadsterFacelift 20123.7 V6
Unrestricted
265 km/h165 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
Mercedes-BenzSLK (R171)Facelift 2008SLK 350 V65.4 s
Nissan370Z RoadsterFacelift 20123.7 V65.8 s

Although Nissan 370Z Roadster Facelift 2012 3.7 V6 has more power, Mercedes-Benz SLK (R171) Facelift 2008 SLK 350 V6 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Mercedes-Benz SLK (R171) Facelift 2008 SLK 350 V6 and Nissan 370Z Roadster Facelift 2012 3.7 V6: 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-BenzSLK (R171)Facelift 2008SLK 350 V6
9.7 L/100 km
24.2 mpg US
29.1 mpg UK
Nissan370Z RoadsterFacelift 20123.7 V6
10.9 L/100 km
21.6 mpg US
25.9 mpg UK

The biggest fuel consumption difference is between Mercedes-Benz SLK (R171) Facelift 2008 SLK 350 V6 and Nissan 370Z Roadster Facelift 2012 3.7 V6: 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
Mercedes-BenzSLK (R171)Facelift 2008SLK 350 V6
213 hp/t
159 kW/t
4.7 kg/hp
Nissan370Z RoadsterFacelift 20123.7 V6
208 hp/t
155 kW/t
4.8 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
Mercedes-BenzSLK (R171)Facelift 2008SLK 350 V6
722 km
448 mi
Nissan370Z RoadsterFacelift 20123.7 V6
661 km
410 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop 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
Nissan370Z RoadsterFacelift 20123.7 V6
328 hp
245 kW
5.8 s
Unrestricted
265 km/h165 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
Mercedes-BenzSLK (R171)Facelift 2008SLK 350 V6
Power
305 hp
227 kW
0-100 km/h5.4 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
Nissan370Z RoadsterFacelift 20123.7 V6
Power
328 hp
245 kW
0-100 km/h5.8 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
2 seats
Trunk
140 L
4.9 cu ft
Length
4,250 mm
167.3 in
Height
1,325 mm
52.2 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
Mercedes-BenzSLK (R171)Facelift 2008SLK 350 V6
Power
305 hp
227 kW
0-100 km/h5.4 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
Nissan370Z RoadsterFacelift 20123.7 V6
Power
328 hp
245 kW
0-100 km/h5.8 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
10.9 L/100 km
21.6 mpg US
25.9 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
VehicleFuel consumption, L/100 km0-100 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
Nissan370Z RoadsterFacelift 20123.7 V6
10.9 L/100 km
21.6 mpg US
25.9 mpg UK
5.8 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-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
Nissan370Z RoadsterFacelift 20123.7 V6
208 hp/t
155 kW/t
4.8 kg/hp
10.9 L/100 km
21.6 mpg US
25.9 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleMercedes-BenzSLK (R171)Facelift 2008SLK 350 V6Nissan370Z RoadsterFacelift 20123.7 V6
Power
305 hp
227 kW
328 hp
245 kW
Torque
360 Nm
266 lb-ft
363 Nm
268 lb-ft
Acceleration
5.4 s
5.8 s
Top speed
Unrestricted
270 km/h168 mph
Restricted
250 km/h155 mph
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Lightness
1,430 kg
3,153 lb
1,574 kg
3,470 lb
Fuel consumption
9.7 L/100 km
24.2 mpg US
29.1 mpg UK
10.9 L/100 km
21.6 mpg US
25.9 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
140 L
4.9 cu ft
Length
4,250 mm
167.3 in
Height
1,325 mm
52.2 in
Range score
722 km
448 mi
661 km
410 mi
Trunk score
208 L
7.3 cu ft
140 L
4.9 cu ft
Power-to-weight score
213 hp/t
159 kW/t
4.7 kg/hp
208 hp/t
155 kW/t
4.8 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
VehicleMercedes-Benz SLK (R171) Facelift 2008 SLK 350 V6Nissan 370Z Roadster Facelift 2012 3.7 V6
Consumption9.7 L/100 km24.2 mpg US29.1 mpg UK10.9 L/100 km21.6 mpg US25.9 mpg UK
Cost / 100 km16.97 LC100 km19.08 LC100 km
Cost / 100 mi27.32 LC100 mi30.70 LC100 mi
Annual fuel used1,455 L384 US gal320 UK gal1,635 L432 US gal360 UK gal
Annual fuel cost2,546 LC/year2,861 LC/year

Head-to-head comparisons

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

  • Is 144 kg lighter
  • Is 0.4 s quicker from 0-100 km/h
  • Has 5 km/h (3 mph) higher top speed
  • Uses 1.2 L/100 km less fuel
  • Has 5 hp/t better power-to-weight
  • Has 61 km (38 mi) more estimated range
  • Has 68 L more trunk volume

Pros

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

Cons

  • Lowest power

Choose cars to compare

Brand
Model
Generation
Engine or modification
Mercedes-Benz SLK (R171) SLK 350 V6
Nissan 370Z Roadster 3.7 V6
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2 vehicles selected

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