Car comparison

Mercedes-Benz SLK (R171) SLK 350 V6vsAUDI TTS Roadster (8J) 2.0 TFSI

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 TTS Roadster (8J)

2.0 TFSI

272 hp1984 ccGasolineAWDManualTurbochargedRoadster2008-2010

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 overall score
    53/100
  • Best performance score
    64/100

AUDI TTS Roadster (8J) 2.0 TFSI

  • Lowest combined fuel consumption
    8.3 L/100 km
    28.3 mpg US
    34.0 mpg UK
  • Lowest city consumption
    11.1 L/100 km
    21.2 mpg US
    25.4 mpg UK
  • Lowest highway consumption
    6.7 L/100 km
    35.1 mpg US
    42.2 mpg UK
  • Best estimated range
    723 km
    449 mi
  • Largest trunk
    250 L
  • Best economy score
    85/100
  • Best practicality score
    30/100

Specification comparison

Specification comparison
ModelMercedes-BenzSLK (R171)SLK 350 V6AUDITTS Roadster (8J)2.0 TFSI
Power
272hp203kW
272hp203kW
Torque
350Nm258lb-ft
350Nm258lb-ft
Curb weight
1,390kg3,064lb
1,475kg3,252lb
Gross weight
1,780kg3,924lb
1,795kg3,957lb
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
69.2s99% target: 257 km/h / 160 mph
Calculated
76.1s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
5.5s
5.7s
0-200 km/h
19.1s
Calculated
20.4s
Calculated
0-60 mph
5.2s
Calculated
5.4s
Calculated
Fuel consumption
10.1L/100 km23.3mpg US28.0mpg UK
8.3L/100 km28.3mpg US34.0mpg UK
Fuel consumption city
14.2L/100 km16.6mpg US19.9mpg UK
11.1L/100 km21.2mpg US25.4mpg UK
Fuel consumption highway
7.8L/100 km30.2mpg US36.2mpg UK
6.7L/100 km35.1mpg US42.2mpg UK
Quarter mile
13.6s
Calculated
13.8s
Calculated
Power-to-weight
196hp/t146kW/t89hp/1000 lb
Calculated
184hp/t138kW/t84hp/1000 lb
Calculated
Torque-to-weight
252Nm/t168lb-ft/ton
Calculated
237Nm/t159lb-ft/ton
Calculated
Estimated range
693km431mi
Calculated
723km449mi
Calculated
Displacement
3,498cc213cu in
1,984cc121cu in
Length
4,089mm161in
4,198mm165in
Width
1,788mm70in
1,842mm73in
Height
1,298mm51in
1,350mm53in
Wheelbase
2,430mm96in
2,468mm97in
Front track
1,526mm60in
1,555mm61in
Rear track
1,549mm61in
1,546mm61in
Trunk volume
208L
250L
Doors
2
2
Seats
2
2
Fuel tank
70L
60L
CO2 emissions-
189g/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 TTS Roadster (8J) 2.0 TFSIPowerTorque
  • Mercedes-Benz SLK (R171) SLK 350 V6: Power / Torque
  • AUDI TTS Roadster (8J) 2.0 TFSI: 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
AUDITTS Roadster (8J)2.0 TFSI6,000 rpm2,500-5,000 rpm6,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricMercedes-BenzSLK (R171)SLK 350 V6AUDITTS Roadster (8J)2.0 TFSI
Acceleration checkpoints
0-60 mph
0-97 km/h
5.2 s
5.4 s
0-100 km/h
0-62 mph
5.5 s
5.7 s
0-200 km/h
0-124 mph
19.1 s
20.4 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Limited
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
Drag race simulation
60 ft
18 m
2.3 s
2.3 s
330 ft
101 m
6.0 s
6.0 s
1/8 mile
201 m
8.9 s
9.1 s
1000 ft
305 m
11.5 s
11.6 s
1/4 mile
402 m
13.6 s
13.8 s
Trap speed
1/4 mile
402 m
172 km/h
107 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)SLK 350 V6
272 hp
203 kW
AUDITTS Roadster (8J)2.0 TFSI
272 hp
203 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
AUDITTS Roadster (8J)2.0 TFSI
350 Nm
258 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
AUDITTS Roadster (8J)2.0 TFSI
1,475 kg
3,252 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
AUDITTS Roadster (8J)2.0 TFSI
Unrestricted
260 km/h162 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)SLK 350 V65.5 s
AUDITTS Roadster (8J)2.0 TFSI5.7 s

The biggest 0-100 km/h difference is between Mercedes-Benz SLK (R171) SLK 350 V6 and AUDI TTS Roadster (8J) 2.0 TFSI: 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
Mercedes-BenzSLK (R171)SLK 350 V6
10.1 L/100 km
23.3 mpg US
28.0 mpg UK
AUDITTS Roadster (8J)2.0 TFSI
8.3 L/100 km
28.3 mpg US
34.0 mpg UK

The biggest fuel consumption difference is between AUDI TTS Roadster (8J) 2.0 TFSI and Mercedes-Benz SLK (R171) SLK 350 V6: 1.8 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
AUDITTS Roadster (8J)2.0 TFSI
184 hp/t
138 kW/t
5.4 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
AUDITTS Roadster (8J)2.0 TFSI
723 km
449 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
AUDITTS Roadster (8J)2.0 TFSI
272 hp
203 kW
5.7 s
Unrestricted
260 km/h162 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)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
AUDITTS Roadster (8J)2.0 TFSI
Power
272 hp
203 kW
0-100 km/h5.7 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
2 seats
Trunk
250 L
8.8 cu ft
Length
4,198 mm
165.3 in
Height
1,350 mm
53.1 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
AUDITTS Roadster (8J)2.0 TFSI
Power
272 hp
203 kW
0-100 km/h5.7 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
8.3 L/100 km
28.3 mpg US
34.0 mpg UK

AUDI TTS Roadster (8J) 2.0 TFSI 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
AUDITTS Roadster (8J)2.0 TFSI
8.3 L/100 km
28.3 mpg US
34.0 mpg UK
5.7 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
AUDITTS Roadster (8J)2.0 TFSI
184 hp/t
138 kW/t
5.4 kg/hp
8.3 L/100 km
28.3 mpg US
34.0 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleMercedes-BenzSLK (R171)SLK 350 V6AUDITTS Roadster (8J)2.0 TFSI
Power
272 hp
203 kW
272 hp
203 kW
Torque
350 Nm
258 lb-ft
350 Nm
258 lb-ft
Acceleration
5.5 s
5.7 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,390 kg
3,064 lb
1,475 kg
3,252 lb
Fuel consumption
10.1 L/100 km
23.3 mpg US
28.0 mpg UK
8.3 L/100 km
28.3 mpg US
34.0 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
4,198 mm
165.3 in
Height
1,350 mm
53.1 in
Range score
693 km
431 mi
723 km
449 mi
CO2 score
-
189 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
184 hp/t
138 kW/t
5.4 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 SLK (R171) SLK 350 V6AUDI TTS Roadster (8J) 2.0 TFSI
Consumption10.1 L/100 km23.3 mpg US28 mpg UK8.3 L/100 km28.3 mpg US34 mpg UK
Cost / 100 km17.68 LC100 km14.53 LC100 km
Cost / 100 mi28.45 LC100 mi23.38 LC100 mi
Annual fuel used1,515 L400 US gal333 UK gal1,245 L329 US gal274 UK gal
Annual fuel cost2,651 LC/year2,179 LC/year

Head-to-head comparisons

Mercedes-Benz SLK (R171) SLK 350 V6

  • Is 85 kg lighter
  • Is 0.2 s quicker from 0-100 km/h
  • Has 11 hp/t better power-to-weight

Pros

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

Cons

  • Highest combined fuel consumption
  • Smallest trunk

AUDI TTS Roadster (8J) 2.0 TFSI

  • Uses 1.8 L/100 km less fuel
  • Has 30 km (19 mi) more estimated range
  • Has 42 L more trunk volume

Pros

  • Lowest combined fuel consumption
  • Best estimated range
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Heaviest

Choose cars to compare

Brand
Model
Generation
Engine or modification
Mercedes-Benz SLK (R171) SLK 350 V6
AUDI TTS Roadster (8J) 2.0 TFSI
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