Car comparison

Mercedes-Benz SLK (R172) SLK 250 CDIvsAUDI TT Roadster (8J) 2.0 TFSI

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 (8J)

2.0 TFSI

200 hp1984 ccGasolineAWDAutomaticTurbochargedRoadster2009-2010

Comparison overview

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

Best choices

Mercedes-Benz SLK (R172) SLK 250 CDI

  • Fastest top speed
    243 km/h
    151 mph
  • Most powerful
    204 hp
    152 kW
  • Highest torque
    500 Nm
    369 lb-ft
  • Lowest combined fuel consumption
    5.0 L/100 km
    47.0 mpg US
    56.5 mpg UK
  • Lowest city consumption
    6.2 L/100 km
    37.9 mpg US
    45.6 mpg UK
  • Lowest highway consumption
    4.3 L/100 km
    54.7 mpg US
    65.7 mpg UK
  • Best estimated range
    1,200 km
    746 mi
  • Best overall score
    49/100
  • Best performance score
    58/100
  • Best economy score
    93/100

AUDI TT Roadster (8J) 2.0 TFSI

  • Quickest 0-100 km/h
    6.4 s
  • Lightest
    1,405 kg
    3,097 lb
  • Best power-to-weight
    142 hp/t
    106 kW/t
    7.0 kg/hp
  • Largest trunk
    250 L
  • Best practicality score
    30/100

Specification comparison

Specification comparison
ModelMercedes-BenzSLK (R172)SLK 250 CDIAUDITT Roadster (8J)2.0 TFSI
Power
204hp152kW
200hp149kW
Torque
500Nm369lb-ft
280Nm207lb-ft
Curb weight
1,515kg3,340lb
1,405kg3,097lb
Gross weight
1,905kg4,200lb
1,725kg3,803lb
Top speed
243 km/h
151 mph
235 km/h
146 mph
To 99% top speed
81.6s99% target: 241 km/h / 149 mph
Calculated
76.3s99% target: 233 km/h / 145 mph
Calculated
0-100 km/h
6.7s
6.4s
0-200 km/h
26.3s
Calculated
27.1s
Calculated
0-60 mph
6.4s
Calculated
6.1s
Calculated
Fuel consumption
5L/100 km47mpg US56.5mpg UK
7.8L/100 km30.2mpg US36.2mpg UK
Fuel consumption city
6.2L/100 km37.9mpg US45.6mpg UK
10.5L/100 km22.4mpg US26.9mpg UK
Fuel consumption highway
4.3L/100 km54.7mpg US65.7mpg UK
6.3L/100 km37.3mpg US44.8mpg UK
Quarter mile
14.7s
Calculated
14.5s
Calculated
Power-to-weight
135hp/t100kW/t61hp/1000 lb
Calculated
142hp/t106kW/t65hp/1000 lb
Calculated
Torque-to-weight
330Nm/t221lb-ft/ton
Calculated
199Nm/t133lb-ft/ton
Calculated
Estimated range
1,200km746mi
Calculated
769km478mi
Calculated
Displacement
2,143cc131cu in
1,984cc121cu in
Length
4,134mm163in
4,178mm164in
Width
1,810mm71in
1,842mm73in
Height
1,301mm51in
1,358mm53in
Wheelbase
2,430mm96in
2,468mm97in
Front track
1,559mm61in
1,572mm62in
Rear track
1,565mm62in
1,558mm61in
Trunk volume
225L
250L
Max trunk volume
335L
-
Doors
2
2
Seats
2
2
Fuel tank
60L
60L
CO2 emissions
132g/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 (8J) 2.0 TFSIPowerTorque
  • Mercedes-Benz SLK (R172) SLK 250 CDI: Power / Torque
  • AUDI TT Roadster (8J) 2.0 TFSI: 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 (8J)2.0 TFSI5,100-6,000 rpm1,700-5,000 rpm6,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricMercedes-BenzSLK (R172)SLK 250 CDIAUDITT Roadster (8J)2.0 TFSI
Acceleration checkpoints
0-60 mph
0-97 km/h
6.4 s
6.1 s
0-100 km/h
0-62 mph
6.7 s
6.4 s
0-200 km/h
0-124 mph
26.3 s
27.1 s
Top speed
243 km/h
151 mph
235 km/h
146 mph
Drag race simulation
60 ft
18 m
2.4 s
2.4 s
330 ft
101 m
6.4 s
6.3 s
1/8 mile
201 m
9.7 s
9.5 s
1000 ft
305 m
12.4 s
12.2 s
1/4 mile
402 m
14.7 s
14.5 s
Trap speed
1/4 mile
402 m
158 km/h
98 mph
158 km/h
98 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 (8J)2.0 TFSI
200 hp
149 kW

Mercedes-Benz SLK (R172) SLK 250 CDI has 4 hp more than AUDI TT Roadster (8J) 2.0 TFSI.

The biggest power difference is between AUDI TT Roadster (8J) 2.0 TFSI and Mercedes-Benz SLK (R172) SLK 250 CDI: 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 250 CDI
500 Nm
369 lb-ft
AUDITT Roadster (8J)2.0 TFSI
280 Nm
207 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 (8J)2.0 TFSI
1,405 kg
3,097 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 (8J)2.0 TFSI
235 km/h
146 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 (8J)2.0 TFSI6.4 s

Although Mercedes-Benz SLK (R172) SLK 250 CDI has more power, AUDI TT Roadster (8J) 2.0 TFSI is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between AUDI TT Roadster (8J) 2.0 TFSI and Mercedes-Benz SLK (R172) SLK 250 CDI: 0.3 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 (8J)2.0 TFSI
7.8 L/100 km
30.2 mpg US
36.2 mpg UK

The biggest fuel consumption difference is between Mercedes-Benz SLK (R172) SLK 250 CDI and AUDI TT Roadster (8J) 2.0 TFSI: 2.8 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 (R172)SLK 250 CDI
135 hp/t
100 kW/t
7.4 kg/hp
AUDITT Roadster (8J)2.0 TFSI
142 hp/t
106 kW/t
7.0 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 (8J)2.0 TFSI
769 km
478 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 (8J)2.0 TFSI
200 hp
149 kW
6.4 s
235 km/h
146 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 (8J)2.0 TFSI
Power
200 hp
149 kW
0-100 km/h6.4 s
Top speed
235 km/h
146 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 (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 (8J)2.0 TFSI
Power
200 hp
149 kW
0-100 km/h6.4 s
Top speed
235 km/h
146 mph
7.8 L/100 km
30.2 mpg US
36.2 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 (8J)2.0 TFSI
7.8 L/100 km
30.2 mpg US
36.2 mpg UK
6.4 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 (8J)2.0 TFSI
142 hp/t
106 kW/t
7.0 kg/hp
7.8 L/100 km
30.2 mpg US
36.2 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleMercedes-BenzSLK (R172)SLK 250 CDIAUDITT Roadster (8J)2.0 TFSI
Power
204 hp
152 kW
200 hp
149 kW
Torque
500 Nm
369 lb-ft
280 Nm
207 lb-ft
Acceleration
6.7 s
6.4 s
Top speed
243 km/h
151 mph
235 km/h
146 mph
Lightness
1,515 kg
3,340 lb
1,405 kg
3,097 lb
Fuel consumption
5.0 L/100 km
47.0 mpg US
56.5 mpg UK
7.8 L/100 km
30.2 mpg US
36.2 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
250 L
8.8 cu ft
Length
4,178 mm
164.5 in
Height
1,358 mm
53.5 in
Range score
1,200 km
746 mi
769 km
478 mi
CO2 score
132 g/km
-
Trunk score
225 L
7.9 cu ft
250 L
8.8 cu ft
Power-to-weight score
135 hp/t
100 kW/t
7.4 kg/hp
142 hp/t
106 kW/t
7.0 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 (R172) SLK 250 CDIAUDI TT Roadster (8J) 2.0 TFSI
Consumption5 L/100 km47 mpg US56.5 mpg UK7.8 L/100 km30.2 mpg US36.2 mpg UK
Cost / 100 km8.75 LC100 km13.65 LC100 km
Cost / 100 mi14.08 LC100 mi21.97 LC100 mi
Annual fuel used750 L198 US gal165 UK gal1,170 L309 US gal257 UK gal
Annual fuel cost1,313 LC/year2,048 LC/year

Head-to-head comparisons

Mercedes-Benz SLK (R172) SLK 250 CDI

  • Has 4 hp more
  • Has 220 Nm more
  • Has 8 km/h (5 mph) higher top speed
  • Uses 2.8 L/100 km less fuel
  • Has 431 km (268 mi) more estimated range

Pros

  • Highest top speed
  • Most powerful
  • Highest torque
  • Lowest combined fuel consumption
  • Best estimated range

Cons

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

AUDI TT Roadster (8J) 2.0 TFSI

  • Is 110 kg lighter
  • Is 0.3 s quicker from 0-100 km/h
  • Has 8 hp/t better power-to-weight
  • Has 25 L more trunk volume

Pros

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

Cons

  • Lowest power
  • Highest combined fuel consumption
  • Lowest top speed

Choose cars to compare

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