Car comparison

Mercedes-Benz SLK (R172) SLK 350 V6vsAUDI TTS Roadster (8S) 2.0 TFSI

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

New comparison

Mercedes-Benz SLK (R172)

SLK 350 V6

306 hp3498 ccGasolineRWDAutomaticNaturally aspiratedRoadster2011-2015
VS

AUDI TTS Roadster (8S)

2.0 TFSI

310 hp1984 ccGasolineAWDManualTurbochargedRoadster2014-2018

Comparison overview

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

Best choices

AUDI TTS Roadster (8S) 2.0 TFSI

  • Quickest 0-100 km/h
    5.2 s
  • Most powerful
    310 hp
    231 kW
  • Highest torque
    380 Nm
    280 lb-ft
  • Lightest
    1,450 kg
    3,197 lb
  • Best power-to-weight
    214 hp/t
    159 kW/t
    4.7 kg/hp
  • Lowest city consumption
    9.5 L/100 km
    24.8 mpg US
    29.7 mpg UK
  • Largest trunk
    280 L
  • Best overall score
    56/100
  • Best performance score
    67/100
  • Best practicality score
    32/100

Mercedes-Benz SLK (R172) SLK 350 V6

  • Fastest top speed
    265 km/h
    165 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Lowest combined fuel consumption
    7.1 L/100 km
    33.1 mpg US
    39.8 mpg UK
  • Lowest highway consumption
    5.5 L/100 km
    42.8 mpg US
    51.4 mpg UK
  • Lowest CO2 emissions
    167 g/km
  • Best estimated range
    845 km
    525 mi
  • Best economy score
    88/100

Specification comparison

Specification comparison
ModelMercedes-BenzSLK (R172)SLK 350 V6AUDITTS Roadster (8S)2.0 TFSI
Power
306hp228kW
310hp231kW
Torque
370Nm273lb-ft
380Nm280lb-ft
Curb weight
1,465kg3,230lb
1,450kg3,197lb
Gross weight
1,855kg4,090lb
1,770kg3,902lb
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Calculated
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
72.3s99% target: 262 km/h / 163 mph
Calculated
65.2s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
5.6s
5.2s
0-200 km/h
19.0s
Calculated
18.0s
Calculated
0-60 mph
5.3s
Calculated
4.9s
Calculated
Fuel consumption
7.1L/100 km33.1mpg US39.8mpg UK
7.5L/100 km31.4mpg US37.7mpg UK
Fuel consumption city
9.9L/100 km23.8mpg US28.5mpg UK
9.5L/100 km24.8mpg US29.7mpg UK
Fuel consumption highway
5.5L/100 km42.8mpg US51.4mpg UK
6.3L/100 km37.3mpg US44.8mpg UK
Quarter mile
13.7s
Calculated
13.3s
Calculated
Power-to-weight
209hp/t156kW/t95hp/1000 lb
Calculated
214hp/t159kW/t97hp/1000 lb
Calculated
Torque-to-weight
253Nm/t169lb-ft/ton
Calculated
262Nm/t175lb-ft/ton
Calculated
Estimated range
845km525mi
Calculated
733km456mi
Calculated
Displacement
3,498cc213cu in
1,984cc121cu in
Length
4,134mm163in
4,191mm165in
Width
1,810mm71in
1,832mm72in
Height
1,301mm51in
1,345mm53in
Wheelbase
2,430mm96in
2,505mm99in
Front track
1,559mm61in
1,574mm62in
Rear track
1,565mm62in
1,553mm61in
Trunk volume
225L
280L
Max trunk volume
335L
-
Doors
2
2
Seats
2
2
Fuel tank
60L
55L
CO2 emissions
167g/km
173g/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 (R172) SLK 350 V6AUDI TTS Roadster (8S) 2.0 TFSIPowerTorque
  • Mercedes-Benz SLK (R172) SLK 350 V6: Power / Torque
  • AUDI TTS Roadster (8S) 2.0 TFSI: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Mercedes-BenzSLK (R172)SLK 350 V66,500 rpm3,500-5,250 rpm6,750 rpm
AUDITTS Roadster (8S)2.0 TFSI5,800-6,200 rpm1,800-5,700 rpm6,450 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricMercedes-BenzSLK (R172)SLK 350 V6AUDITTS Roadster (8S)2.0 TFSI
Acceleration checkpoints
0-60 mph
0-97 km/h
5.3 s
4.9 s
0-100 km/h
0-62 mph
5.6 s
5.2 s
0-200 km/h
0-124 mph
19.0 s
18.0 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Limited
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Limited
Drag race simulation
60 ft
18 m
2.3 s
2.2 s
330 ft
101 m
6.0 s
5.8 s
1/8 mile
201 m
9.0 s
8.7 s
1000 ft
305 m
11.5 s
11.2 s
1/4 mile
402 m
13.7 s
13.3 s
Trap speed
1/4 mile
402 m
172 km/h
107 mph
175 km/h
109 mph

Power comparison

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

Chart data table
VehicleValue
Mercedes-BenzSLK (R172)SLK 350 V6
306 hp
228 kW
AUDITTS Roadster (8S)2.0 TFSI
310 hp
231 kW

AUDI TTS Roadster (8S) 2.0 TFSI has 4 hp more than Mercedes-Benz SLK (R172) SLK 350 V6.

The biggest power difference is between Mercedes-Benz SLK (R172) SLK 350 V6 and AUDI TTS Roadster (8S) 2.0 TFSI: 4 hp (3 kW).

Torque comparison

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

Chart data table
VehicleValue
Mercedes-BenzSLK (R172)SLK 350 V6
370 Nm
273 lb-ft
AUDITTS Roadster (8S)2.0 TFSI
380 Nm
280 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
Mercedes-BenzSLK (R172)SLK 350 V6
1,465 kg
3,230 lb
AUDITTS Roadster (8S)2.0 TFSI
1,450 kg
3,197 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 (R172)SLK 350 V6
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
AUDITTS Roadster (8S)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 (R172)SLK 350 V65.6 s
AUDITTS Roadster (8S)2.0 TFSI5.2 s

The biggest 0-100 km/h difference is between AUDI TTS Roadster (8S) 2.0 TFSI and Mercedes-Benz SLK (R172) SLK 350 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 (R172)SLK 350 V6
7.1 L/100 km
33.1 mpg US
39.8 mpg UK
AUDITTS Roadster (8S)2.0 TFSI
7.5 L/100 km
31.4 mpg US
37.7 mpg UK

Power-to-weight comparison

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

Chart data table
VehicleValue
Mercedes-BenzSLK (R172)SLK 350 V6
209 hp/t
156 kW/t
4.8 kg/hp
AUDITTS Roadster (8S)2.0 TFSI
214 hp/t
159 kW/t
4.7 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
Mercedes-BenzSLK (R172)SLK 350 V6
845 km
525 mi
AUDITTS Roadster (8S)2.0 TFSI
733 km
456 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Mercedes-BenzSLK (R172)SLK 350 V6
306 hp
228 kW
5.6 s
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
AUDITTS Roadster (8S)2.0 TFSI
310 hp
231 kW
5.2 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 (R172)SLK 350 V6
Power
306 hp
228 kW
0-100 km/h5.6 s
Top speed
Unrestricted
265 km/h165 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
AUDITTS Roadster (8S)2.0 TFSI
Power
310 hp
231 kW
0-100 km/h5.2 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
2 seats
Trunk
280 L
9.9 cu ft
Length
4,191 mm
165.0 in
Height
1,345 mm
53.0 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 (R172)SLK 350 V6
Power
306 hp
228 kW
0-100 km/h5.6 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
7.1 L/100 km
33.1 mpg US
39.8 mpg UK
AUDITTS Roadster (8S)2.0 TFSI
Power
310 hp
231 kW
0-100 km/h5.2 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
7.5 L/100 km
31.4 mpg US
37.7 mpg UK

AUDI TTS Roadster (8S) 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 (R172)SLK 350 V6
7.1 L/100 km
33.1 mpg US
39.8 mpg UK
5.6 s
AUDITTS Roadster (8S)2.0 TFSI
7.5 L/100 km
31.4 mpg US
37.7 mpg UK
5.2 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 (R172)SLK 350 V6
209 hp/t
156 kW/t
4.8 kg/hp
7.1 L/100 km
33.1 mpg US
39.8 mpg UK
AUDITTS Roadster (8S)2.0 TFSI
214 hp/t
159 kW/t
4.7 kg/hp
7.5 L/100 km
31.4 mpg US
37.7 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleMercedes-BenzSLK (R172)SLK 350 V6AUDITTS Roadster (8S)2.0 TFSI
Power
306 hp
228 kW
310 hp
231 kW
Torque
370 Nm
273 lb-ft
380 Nm
280 lb-ft
Acceleration
5.6 s
5.2 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,465 kg
3,230 lb
1,450 kg
3,197 lb
Fuel consumption
7.1 L/100 km
33.1 mpg US
39.8 mpg UK
7.5 L/100 km
31.4 mpg US
37.7 mpg UK
Practicality
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
Doors/seats
2 doors
2 seats
Trunk
280 L
9.9 cu ft
Length
4,191 mm
165.0 in
Height
1,345 mm
53.0 in
Range score
845 km
525 mi
733 km
456 mi
CO2 score
167 g/km
173 g/km
Trunk score
225 L
7.9 cu ft
280 L
9.9 cu ft
Power-to-weight score
209 hp/t
156 kW/t
4.8 kg/hp
214 hp/t
159 kW/t
4.7 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 (R172) SLK 350 V6AUDI TTS Roadster (8S) 2.0 TFSI
Consumption7.1 L/100 km33.1 mpg US39.8 mpg UK7.5 L/100 km31.4 mpg US37.7 mpg UK
Cost / 100 km12.42 LC100 km13.13 LC100 km
Cost / 100 mi20.00 LC100 mi21.12 LC100 mi
Annual fuel used1,065 L281 US gal234 UK gal1,125 L297 US gal247 UK gal
Annual fuel cost1,864 LC/year1,969 LC/year

Head-to-head comparisons

Mercedes-Benz SLK (R172) SLK 350 V6

  • Has 5 km/h (3 mph) higher top speed
  • Uses 0.4 L/100 km less fuel
  • Has 112 km (69 mi) more estimated range
  • Emits 6 g/km less CO2

Pros

  • Highest top speed
  • Lowest combined fuel consumption
  • Best estimated range

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Heaviest
  • Smallest trunk

AUDI TTS Roadster (8S) 2.0 TFSI

  • Has 4 hp more
  • Has 10 Nm more
  • Is 15 kg lighter
  • Is 0.4 s quicker from 0-100 km/h
  • Has 5 hp/t better power-to-weight
  • Has 55 L more trunk volume

Pros

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

Cons

  • Highest combined fuel consumption
  • Lowest top speed
  • Highest CO2 emissions

Choose cars to compare

Brand
Model
Generation
Engine or modification
Mercedes-Benz SLK (R172) SLK 350 V6
AUDI TTS Roadster (8S) 2.0 TFSI
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