Car comparison

Mercedes-Benz SLK (R171) SLK 350 V6vsAUDI TT Roadster (8J) 3.2i V6 24V

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

New comparison

Mercedes-Benz SLK (R171)

SLK 350 V6

272 hp3498 ccGasolineRWDAutomaticNaturally aspiratedRoadster2004-2007
VS

AUDI TT Roadster (8J)

3.2i V6 24V

250 hp3189 ccGasolineAWDAutomaticNaturally aspiratedRoadster2006-2010

Comparison overview

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

Best choices

Mercedes-Benz SLK (R171) SLK 350 V6

  • Quickest 0-100 km/h
    5.5 s
  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    272 hp
    203 kW
  • Highest torque
    350 Nm
    258 lb-ft
  • Lightest
    1,390 kg
    3,064 lb
  • Best power-to-weight
    196 hp/t
    146 kW/t
    5.1 kg/hp
  • Best estimated range
    693 km
    431 mi
  • Best overall score
    53/100
  • Best performance score
    64/100

AUDI TT Roadster (8J) 3.2i V6 24V

  • Lowest combined fuel consumption
    9.5 L/100 km
    24.8 mpg US
    29.7 mpg UK
  • Lowest city consumption
    13.0 L/100 km
    18.1 mpg US
    21.7 mpg UK
  • Lowest highway consumption
    7.4 L/100 km
    31.8 mpg US
    38.2 mpg UK
  • Largest trunk
    250 L
  • Best economy score
    81/100
  • Best practicality score
    30/100

Specification comparison

Specification comparison
ModelMercedes-BenzSLK (R171)SLK 350 V6AUDITT Roadster (8J)3.2i V6 24V
Power
272hp203kW
250hp186kW
Torque
350Nm258lb-ft
320Nm236lb-ft
Curb weight
1,390kg3,064lb
1,490kg3,285lb
Gross weight
1,780kg3,924lb
1,810kg3,990lb
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
250 km/h
155 mph
To 99% top speed
69.2s99% target: 257 km/h / 160 mph
Calculated
75.6s99% target: 248 km/h / 154 mph
Calculated
0-100 km/h
5.5s
5.9s
0-200 km/h
19.1s
Calculated
22.3s
Calculated
0-60 mph
5.2s
Calculated
5.6s
Calculated
Fuel consumption
10.1L/100 km23.3mpg US28.0mpg UK
9.5L/100 km24.8mpg US29.7mpg UK
Fuel consumption city
14.2L/100 km16.6mpg US19.9mpg UK
13L/100 km18.1mpg US21.7mpg UK
Fuel consumption highway
7.8L/100 km30.2mpg US36.2mpg UK
7.4L/100 km31.8mpg US38.2mpg UK
Quarter mile
13.6s
Calculated
14.0s
Calculated
Power-to-weight
196hp/t146kW/t89hp/1000 lb
Calculated
168hp/t125kW/t76hp/1000 lb
Calculated
Torque-to-weight
252Nm/t168lb-ft/ton
Calculated
215Nm/t144lb-ft/ton
Calculated
Estimated range
693km431mi
Calculated
632km392mi
Calculated
Displacement
3,498cc213cu in
3,189cc195cu in
Length
4,089mm161in
4,178mm164in
Width
1,788mm70in
1,842mm73in
Height
1,298mm51in
1,358mm53in
Wheelbase
2,430mm96in
2,468mm97in
Front track
1,526mm60in
1,572mm62in
Rear track
1,549mm61in
1,558mm61in
Trunk volume
208L
250L
Doors
2
2
Seats
2
2
Fuel tank
70L
60L
CO2 emissions-
227g/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 SLK (R171) SLK 350 V6AUDI TT Roadster (8J) 3.2i V6 24VPowerTorque
  • Mercedes-Benz SLK (R171) SLK 350 V6: Power / Torque
  • AUDI TT Roadster (8J) 3.2i V6 24V: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Mercedes-BenzSLK (R171)SLK 350 V66,000 rpm2,400-5,000 rpm6,250 rpm
AUDITT Roadster (8J)3.2i V6 24V6,300 rpm2,500-3,000 rpm6,550 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricMercedes-BenzSLK (R171)SLK 350 V6AUDITT Roadster (8J)3.2i V6 24V
Acceleration checkpoints
0-60 mph
0-97 km/h
5.2 s
5.6 s
0-100 km/h
0-62 mph
5.5 s
5.9 s
0-200 km/h
0-124 mph
19.1 s
22.3 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Limited
250 km/h
155 mph
Drag race simulation
60 ft
18 m
2.3 s
2.3 s
330 ft
101 m
6.0 s
6.1 s
1/8 mile
201 m
8.9 s
9.2 s
1000 ft
305 m
11.5 s
11.8 s
1/4 mile
402 m
13.6 s
14.0 s
Trap speed
1/4 mile
402 m
172 km/h
107 mph
165 km/h
102 mph

Power comparison

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

Chart data table
VehicleValue
Mercedes-BenzSLK (R171)SLK 350 V6
272 hp
203 kW
AUDITT Roadster (8J)3.2i V6 24V
250 hp
186 kW

Mercedes-Benz SLK (R171) SLK 350 V6 has 22 hp more than AUDI TT Roadster (8J) 3.2i V6 24V.

The biggest power difference is between AUDI TT Roadster (8J) 3.2i V6 24V and Mercedes-Benz SLK (R171) SLK 350 V6: 22 hp (16 kW).

Torque comparison

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

Chart data table
VehicleValue
Mercedes-BenzSLK (R171)SLK 350 V6
350 Nm
258 lb-ft
AUDITT Roadster (8J)3.2i V6 24V
320 Nm
236 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
Mercedes-BenzSLK (R171)SLK 350 V6
1,390 kg
3,064 lb
AUDITT Roadster (8J)3.2i V6 24V
1,490 kg
3,285 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)SLK 350 V6
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
AUDITT Roadster (8J)3.2i V6 24V
250 km/h
155 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)SLK 350 V65.5 s
AUDITT Roadster (8J)3.2i V6 24V5.9 s

The biggest 0-100 km/h difference is between Mercedes-Benz SLK (R171) SLK 350 V6 and AUDI TT Roadster (8J) 3.2i V6 24V: 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)SLK 350 V6
10.1 L/100 km
23.3 mpg US
28.0 mpg UK
AUDITT Roadster (8J)3.2i V6 24V
9.5 L/100 km
24.8 mpg US
29.7 mpg UK

The biggest fuel consumption difference is between AUDI TT Roadster (8J) 3.2i V6 24V and Mercedes-Benz SLK (R171) SLK 350 V6: 0.6 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)SLK 350 V6
196 hp/t
146 kW/t
5.1 kg/hp
AUDITT Roadster (8J)3.2i V6 24V
168 hp/t
125 kW/t
6.0 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
Mercedes-BenzSLK (R171)SLK 350 V6
693 km
431 mi
AUDITT Roadster (8J)3.2i V6 24V
632 km
392 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Mercedes-BenzSLK (R171)SLK 350 V6
272 hp
203 kW
5.5 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
AUDITT Roadster (8J)3.2i V6 24V
250 hp
186 kW
5.9 s
250 km/h
155 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)SLK 350 V6
Power
272 hp
203 kW
0-100 km/h5.5 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
2 seats
Trunk
208 L
7.3 cu ft
Length
4,089 mm
161.0 in
Height
1,298 mm
51.1 in
AUDITT Roadster (8J)3.2i V6 24V
Power
250 hp
186 kW
0-100 km/h5.9 s
Top speed
250 km/h
155 mph
Doors/seats
2 doors
2 seats
Trunk
250 L
8.8 cu ft
Length
4,178 mm
164.5 in
Height
1,358 mm
53.5 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)SLK 350 V6
Power
272 hp
203 kW
0-100 km/h5.5 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
10.1 L/100 km
23.3 mpg US
28.0 mpg UK
AUDITT Roadster (8J)3.2i V6 24V
Power
250 hp
186 kW
0-100 km/h5.9 s
Top speed
250 km/h
155 mph
9.5 L/100 km
24.8 mpg US
29.7 mpg UK

Mercedes-Benz SLK (R171) 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)SLK 350 V6
10.1 L/100 km
23.3 mpg US
28.0 mpg UK
5.5 s
AUDITT Roadster (8J)3.2i V6 24V
9.5 L/100 km
24.8 mpg US
29.7 mpg UK
5.9 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
VehiclePower-to-weight, hp/tFuel consumption, L/100 km
Mercedes-BenzSLK (R171)SLK 350 V6
196 hp/t
146 kW/t
5.1 kg/hp
10.1 L/100 km
23.3 mpg US
28.0 mpg UK
AUDITT Roadster (8J)3.2i V6 24V
168 hp/t
125 kW/t
6.0 kg/hp
9.5 L/100 km
24.8 mpg US
29.7 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleMercedes-BenzSLK (R171)SLK 350 V6AUDITT Roadster (8J)3.2i V6 24V
Power
272 hp
203 kW
250 hp
186 kW
Torque
350 Nm
258 lb-ft
320 Nm
236 lb-ft
Acceleration
5.5 s
5.9 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
250 km/h
155 mph
Lightness
1,390 kg
3,064 lb
1,490 kg
3,285 lb
Fuel consumption
10.1 L/100 km
23.3 mpg US
28.0 mpg UK
9.5 L/100 km
24.8 mpg US
29.7 mpg UK
Practicality
Doors/seats
2 doors
2 seats
Trunk
208 L
7.3 cu ft
Length
4,089 mm
161.0 in
Height
1,298 mm
51.1 in
Doors/seats
2 doors
2 seats
Trunk
250 L
8.8 cu ft
Length
4,178 mm
164.5 in
Height
1,358 mm
53.5 in
Range score
693 km
431 mi
632 km
392 mi
CO2 score
-
227 g/km
Trunk score
208 L
7.3 cu ft
250 L
8.8 cu ft
Power-to-weight score
196 hp/t
146 kW/t
5.1 kg/hp
168 hp/t
125 kW/t
6.0 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) SLK 350 V6AUDI TT Roadster (8J) 3.2i V6 24V
Consumption10.1 L/100 km23.3 mpg US28 mpg UK9.5 L/100 km24.8 mpg US29.7 mpg UK
Cost / 100 km17.68 LC100 km16.63 LC100 km
Cost / 100 mi28.45 LC100 mi26.76 LC100 mi
Annual fuel used1,515 L400 US gal333 UK gal1,425 L376 US gal313 UK gal
Annual fuel cost2,651 LC/year2,494 LC/year

Head-to-head comparisons

Mercedes-Benz SLK (R171) SLK 350 V6

  • Has 22 hp more
  • Has 30 Nm more
  • Is 100 kg lighter
  • Is 0.4 s quicker from 0-100 km/h
  • Has 10 km/h (6 mph) higher top speed
  • Has 28 hp/t better power-to-weight
  • Has 61 km (38 mi) more estimated range

Pros

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

Cons

  • Highest combined fuel consumption
  • Smallest trunk

AUDI TT Roadster (8J) 3.2i V6 24V

  • Uses 0.6 L/100 km less fuel
  • Has 42 L more trunk volume

Pros

  • Lowest combined fuel consumption
  • Largest trunk

Cons

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

Choose cars to compare

Brand
Model
Generation
Engine or modification
Mercedes-Benz SLK (R171) SLK 350 V6
AUDI TT Roadster (8J) 3.2i V6 24V
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