Car comparison

Mercedes-Benz SLK (R172) SLK 250 CDIvsAUDI TT Roadster (8S) 2.0 TDI ultra

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

New comparison

Mercedes-Benz SLK (R172)

SLK 250 CDI

204 hp2143 ccDieselRWDAutomaticTwin-turboRoadster2012-2015
VS

AUDI TT Roadster (8S)

2.0 TDI ultra

184 hp1968 ccDieselFWDManualTurbochargedRoadster2014-2018

Comparison overview

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

Best choices

AUDI TT Roadster (8S) 2.0 TDI ultra

  • Lightest
    1,360 kg
    2,998 lb
  • Best power-to-weight
    135 hp/t
    101 kW/t
    7.4 kg/hp
  • Lowest combined fuel consumption
    4.3 L/100 km
    54.7 mpg US
    65.7 mpg UK
  • Lowest city consumption
    5.1 L/100 km
    46.1 mpg US
    55.4 mpg UK
  • Lowest highway consumption
    3.9 L/100 km
    60.3 mpg US
    72.4 mpg UK
  • Lowest CO2 emissions
    114 g/km
  • Largest trunk
    280 L
  • Best economy score
    95/100
  • Best practicality score
    32/100

Mercedes-Benz SLK (R172) SLK 250 CDI

  • Quickest 0-100 km/h
    6.7 s
  • Fastest top speed
    243 km/h
    151 mph
  • Most powerful
    204 hp
    152 kW
  • Highest torque
    500 Nm
    369 lb-ft
  • Best estimated range
    1,200 km
    746 mi
  • Best overall score
    49/100
  • Best performance score
    58/100

Specification comparison

Specification comparison
ModelMercedes-BenzSLK (R172)SLK 250 CDIAUDITT Roadster (8S)2.0 TDI ultra
Power
204hp152kW
184hp137kW
Torque
500Nm369lb-ft
380Nm280lb-ft
Curb weight
1,515kg3,340lb
1,360kg2,998lb
Gross weight
1,905kg4,200lb
1,680kg3,704lb
Top speed
243 km/h
151 mph
237 km/h
147 mph
To 99% top speed
81.6s99% target: 241 km/h / 149 mph
Calculated
88.2s99% target: 235 km/h / 146 mph
Calculated
0-100 km/h
6.7s
7.3s
0-200 km/h
26.3s
Calculated
30.5s
Calculated
0-60 mph
6.4s
Calculated
6.9s
Calculated
Fuel consumption
5L/100 km47mpg US56.5mpg UK
4.3L/100 km54.7mpg US65.7mpg UK
Fuel consumption city
6.2L/100 km37.9mpg US45.6mpg UK
5.1L/100 km46.1mpg US55.4mpg UK
Fuel consumption highway
4.3L/100 km54.7mpg US65.7mpg UK
3.9L/100 km60.3mpg US72.4mpg UK
Quarter mile
14.7s
Calculated
15.2s
Calculated
Power-to-weight
135hp/t100kW/t61hp/1000 lb
Calculated
135hp/t101kW/t61hp/1000 lb
Calculated
Torque-to-weight
330Nm/t221lb-ft/ton
Calculated
279Nm/t187lb-ft/ton
Calculated
Estimated range
1,200km746mi
Calculated
1,163km723mi
Calculated
Displacement
2,143cc131cu in
1,968cc120cu in
Length
4,134mm163in
4,177mm164in
Width
1,810mm71in
1,832mm72in
Height
1,301mm51in
1,355mm53in
Wheelbase
2,430mm96in
2,505mm99in
Front track
1,559mm61in
1,572mm62in
Rear track
1,565mm62in
1,552mm61in
Trunk volume
225L
280L
Max trunk volume
335L
-
Doors
2
2
Seats
2
2
Fuel tank
60L
50L
CO2 emissions
132g/km
114g/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 250 CDIAUDI TT Roadster (8S) 2.0 TDI ultraPowerTorque
  • Mercedes-Benz SLK (R172) SLK 250 CDI: Power / Torque
  • AUDI TT Roadster (8S) 2.0 TDI ultra: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Mercedes-BenzSLK (R172)SLK 250 CDI3,800 rpm1,600-1,800 rpm4,050 rpm
AUDITT Roadster (8S)2.0 TDI ultra3,500-4,000 rpm1,750-3,250 rpm4,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricMercedes-BenzSLK (R172)SLK 250 CDIAUDITT Roadster (8S)2.0 TDI ultra
Acceleration checkpoints
0-60 mph
0-97 km/h
6.4 s
6.9 s
0-100 km/h
0-62 mph
6.7 s
7.3 s
0-200 km/h
0-124 mph
26.3 s
30.5 s
Top speed
243 km/h
151 mph
237 km/h
147 mph
Drag race simulation
60 ft
18 m
2.4 s
2.5 s
330 ft
101 m
6.4 s
6.6 s
1/8 mile
201 m
9.7 s
10.0 s
1000 ft
305 m
12.4 s
12.8 s
1/4 mile
402 m
14.7 s
15.2 s
Trap speed
1/4 mile
402 m
158 km/h
98 mph
152 km/h
95 mph

Power comparison

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

Chart data table
VehicleValue
Mercedes-BenzSLK (R172)SLK 250 CDI
204 hp
152 kW
AUDITT Roadster (8S)2.0 TDI ultra
184 hp
137 kW

Mercedes-Benz SLK (R172) SLK 250 CDI has 20 hp more than AUDI TT Roadster (8S) 2.0 TDI ultra.

The biggest power difference is between AUDI TT Roadster (8S) 2.0 TDI ultra and Mercedes-Benz SLK (R172) SLK 250 CDI: 20 hp (15 kW).

Torque comparison

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

Chart data table
VehicleValue
Mercedes-BenzSLK (R172)SLK 250 CDI
500 Nm
369 lb-ft
AUDITT Roadster (8S)2.0 TDI ultra
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 250 CDI
1,515 kg
3,340 lb
AUDITT Roadster (8S)2.0 TDI ultra
1,360 kg
2,998 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 250 CDI
243 km/h
151 mph
AUDITT Roadster (8S)2.0 TDI ultra
237 km/h
147 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 250 CDI6.7 s
AUDITT Roadster (8S)2.0 TDI ultra7.3 s

The biggest 0-100 km/h difference is between Mercedes-Benz SLK (R172) SLK 250 CDI and AUDI TT Roadster (8S) 2.0 TDI ultra: 0.6 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 250 CDI
5.0 L/100 km
47.0 mpg US
56.5 mpg UK
AUDITT Roadster (8S)2.0 TDI ultra
4.3 L/100 km
54.7 mpg US
65.7 mpg UK

The biggest fuel consumption difference is between AUDI TT Roadster (8S) 2.0 TDI ultra and Mercedes-Benz SLK (R172) SLK 250 CDI: 0.7 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 (R172)SLK 250 CDI
135 hp/t
100 kW/t
7.4 kg/hp
AUDITT Roadster (8S)2.0 TDI ultra
135 hp/t
101 kW/t
7.4 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
Mercedes-BenzSLK (R172)SLK 250 CDI
1,200 km
746 mi
AUDITT Roadster (8S)2.0 TDI ultra
1,163 km
723 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Mercedes-BenzSLK (R172)SLK 250 CDI
204 hp
152 kW
6.7 s
243 km/h
151 mph
AUDITT Roadster (8S)2.0 TDI ultra
184 hp
137 kW
7.3 s
237 km/h
147 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 250 CDI
Power
204 hp
152 kW
0-100 km/h6.7 s
Top speed
243 km/h
151 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
AUDITT Roadster (8S)2.0 TDI ultra
Power
184 hp
137 kW
0-100 km/h7.3 s
Top speed
237 km/h
147 mph
Doors/seats
2 doors
2 seats
Trunk
280 L
9.9 cu ft
Length
4,177 mm
164.4 in
Height
1,355 mm
53.3 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 250 CDI
Power
204 hp
152 kW
0-100 km/h6.7 s
Top speed
243 km/h
151 mph
5.0 L/100 km
47.0 mpg US
56.5 mpg UK
AUDITT Roadster (8S)2.0 TDI ultra
Power
184 hp
137 kW
0-100 km/h7.3 s
Top speed
237 km/h
147 mph
4.3 L/100 km
54.7 mpg US
65.7 mpg UK

Mercedes-Benz SLK (R172) SLK 250 CDI 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 250 CDI
5.0 L/100 km
47.0 mpg US
56.5 mpg UK
6.7 s
AUDITT Roadster (8S)2.0 TDI ultra
4.3 L/100 km
54.7 mpg US
65.7 mpg UK
7.3 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 250 CDI
135 hp/t
100 kW/t
7.4 kg/hp
5.0 L/100 km
47.0 mpg US
56.5 mpg UK
AUDITT Roadster (8S)2.0 TDI ultra
135 hp/t
101 kW/t
7.4 kg/hp
4.3 L/100 km
54.7 mpg US
65.7 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleMercedes-BenzSLK (R172)SLK 250 CDIAUDITT Roadster (8S)2.0 TDI ultra
Power
204 hp
152 kW
184 hp
137 kW
Torque
500 Nm
369 lb-ft
380 Nm
280 lb-ft
Acceleration
6.7 s
7.3 s
Top speed
243 km/h
151 mph
237 km/h
147 mph
Lightness
1,515 kg
3,340 lb
1,360 kg
2,998 lb
Fuel consumption
5.0 L/100 km
47.0 mpg US
56.5 mpg UK
4.3 L/100 km
54.7 mpg US
65.7 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
4,177 mm
164.4 in
Height
1,355 mm
53.3 in
Range score
1,200 km
746 mi
1,163 km
723 mi
CO2 score
132 g/km
114 g/km
Trunk score
225 L
7.9 cu ft
280 L
9.9 cu ft
Power-to-weight score
135 hp/t
100 kW/t
7.4 kg/hp
135 hp/t
101 kW/t
7.4 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 (R172) SLK 250 CDIAUDI TT Roadster (8S) 2.0 TDI ultra
Consumption5 L/100 km47 mpg US56.5 mpg UK4.3 L/100 km54.7 mpg US65.7 mpg UK
Cost / 100 km8.75 LC100 km7.52 LC100 km
Cost / 100 mi14.08 LC100 mi12.11 LC100 mi
Annual fuel used750 L198 US gal165 UK gal645 L170 US gal142 UK gal
Annual fuel cost1,313 LC/year1,129 LC/year

Head-to-head comparisons

Mercedes-Benz SLK (R172) SLK 250 CDI

  • Has 20 hp more
  • Has 120 Nm more
  • Is 0.6 s quicker from 0-100 km/h
  • Has 6 km/h (4 mph) higher top speed
  • Has 37 km (23 mi) more estimated range

Pros

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

Cons

  • Highest combined fuel consumption
  • Heaviest
  • Smallest trunk
  • Highest CO2 emissions

AUDI TT Roadster (8S) 2.0 TDI ultra

  • Is 155 kg lighter
  • Uses 0.7 L/100 km less fuel
  • Has 1 hp/t better power-to-weight
  • Has 55 L more trunk volume
  • Emits 18 g/km less CO2

Pros

  • Lightest
  • Lowest combined fuel consumption
  • Best power-to-weight ratio
  • Largest trunk

Cons

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

Choose cars to compare

Brand
Model
Generation
Engine or modification
Mercedes-Benz SLK (R172) SLK 250 CDI
AUDI TT Roadster (8S) 2.0 TDI ultra
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