Car comparison

AUDI TT Roadster (8S) · Facelift 2018 40 TFSIvsMercedes-Benz SLK (R172) SLK 250 CDI

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

New comparison

AUDI TT Roadster (8S) · Facelift 2018

40 TFSI

197 hp1984 ccGasolineFWDAutomaticTurbochargedRoadster2018-2023
VS

Mercedes-Benz SLK (R172)

SLK 250 CDI

204 hp2143 ccDieselRWDAutomaticTwin-turboRoadster2012-2015

Comparison overview

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

Best choices

Mercedes-Benz SLK (R172) SLK 250 CDI

  • Quickest 0-100 km/h
    6.7 s
  • 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
  • Lowest CO2 emissions
    132 g/km
  • Best estimated range
    1,200 km
    746 mi
  • Best overall score
    49/100
  • Best performance score
    58/100
  • Best economy score
    93/100

Specification comparison

Specification comparison
ModelAUDITT Roadster (8S)Facelift 201840 TFSIMercedes-BenzSLK (R172)SLK 250 CDI
Power
197hp147kW
204hp152kW
Torque
320Nm236lb-ft
500Nm369lb-ft
Curb weight
1,435kg3,164lb
1,515kg3,340lb
Gross weight
1,715kg3,781lb
1,905kg4,200lb
Top speed
247 km/h
153 mph
243 km/h
151 mph
To 99% top speed
88.2s99% target: 245 km/h / 152 mph
Calculated
81.6s99% target: 241 km/h / 149 mph
Calculated
0-100 km/h
6.9s
6.7s
0-200 km/h
26.8s
Calculated
26.3s
Calculated
0-60 mph
6.5s
Calculated
6.4s
Calculated
Fuel consumption
6.3L/100 km37.3mpg US44.8mpg UK
5L/100 km47mpg US56.5mpg UK
Fuel consumption city
8.3L/100 km28.3mpg US34.0mpg UK
6.2L/100 km37.9mpg US45.6mpg UK
Fuel consumption highway
5.2L/100 km45.2mpg US54.3mpg UK
4.3L/100 km54.7mpg US65.7mpg UK
Quarter mile
14.9s
Calculated
14.7s
Calculated
Power-to-weight
137hp/t102kW/t62hp/1000 lb
Calculated
135hp/t100kW/t61hp/1000 lb
Calculated
Torque-to-weight
223Nm/t149lb-ft/ton
Calculated
330Nm/t221lb-ft/ton
Calculated
Estimated range
794km493mi
Calculated
1,200km746mi
Calculated
Displacement
1,984cc121cu in
2,143cc131cu in
Length
4,191mm165in
4,134mm163in
Width
1,832mm72in
1,810mm71in
Height
1,355mm53in
1,301mm51in
Wheelbase
2,505mm99in
2,430mm96in
Front track
1,572mm62in
1,559mm61in
Rear track
1,552mm61in
1,565mm62in
Trunk volume-
225L
Max trunk volume-
335L
Doors
2
2
Seats
2
2
Fuel tank
50L
60L
CO2 emissions
145g/km
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.

AUDI TT Roadster (8S) Facelift 2018 40 TFSIMercedes-Benz SLK (R172) SLK 250 CDIPowerTorque
  • AUDI TT Roadster (8S) Facelift 2018 40 TFSI: Power / Torque
  • Mercedes-Benz SLK (R172) SLK 250 CDI: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
AUDITT Roadster (8S)Facelift 201840 TFSI4,400-6,000 rpm1,500-4,300 rpm6,250 rpm
Mercedes-BenzSLK (R172)SLK 250 CDI3,800 rpm1,600-1,800 rpm4,050 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricAUDITT Roadster (8S)Facelift 201840 TFSIMercedes-BenzSLK (R172)SLK 250 CDI
Acceleration checkpoints
0-60 mph
0-97 km/h
6.5 s
6.4 s
0-100 km/h
0-62 mph
6.9 s
6.7 s
0-200 km/h
0-124 mph
26.8 s
26.3 s
Top speed
247 km/h
153 mph
243 km/h
151 mph
Drag race simulation
60 ft
18 m
2.5 s
2.4 s
330 ft
101 m
6.5 s
6.4 s
1/8 mile
201 m
9.8 s
9.7 s
1000 ft
305 m
12.6 s
12.4 s
1/4 mile
402 m
14.9 s
14.7 s
Trap speed
1/4 mile
402 m
156 km/h
97 mph
158 km/h
98 mph

Power comparison

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

Chart data table
VehicleValue
AUDITT Roadster (8S)Facelift 201840 TFSI
197 hp
147 kW
Mercedes-BenzSLK (R172)SLK 250 CDI
204 hp
152 kW

Mercedes-Benz SLK (R172) SLK 250 CDI has 7 hp more than AUDI TT Roadster (8S) Facelift 2018 40 TFSI.

The biggest power difference is between AUDI TT Roadster (8S) Facelift 2018 40 TFSI and Mercedes-Benz SLK (R172) SLK 250 CDI: 7 hp (5 kW).

Torque comparison

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

Chart data table
VehicleValue
AUDITT Roadster (8S)Facelift 201840 TFSI
320 Nm
236 lb-ft
Mercedes-BenzSLK (R172)SLK 250 CDI
500 Nm
369 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
AUDITT Roadster (8S)Facelift 201840 TFSI
1,435 kg
3,164 lb
Mercedes-BenzSLK (R172)SLK 250 CDI
1,515 kg
3,340 lb

Top speed without limiter comparison

Bar comparison chart for Top speed without limiter. Higher is better · km/h / mph

Chart data table
VehicleValue
AUDITT Roadster (8S)Facelift 201840 TFSI
247 km/h
153 mph
Mercedes-BenzSLK (R172)SLK 250 CDI
243 km/h
151 mph

0-100 km/h comparison

Bar comparison chart for 0-100 km/h. Lower is better · seconds

Chart data table
VehicleValue
AUDITT Roadster (8S)Facelift 201840 TFSI6.9 s
Mercedes-BenzSLK (R172)SLK 250 CDI6.7 s

The biggest 0-100 km/h difference is between Mercedes-Benz SLK (R172) SLK 250 CDI and AUDI TT Roadster (8S) Facelift 2018 40 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
AUDITT Roadster (8S)Facelift 201840 TFSI
6.3 L/100 km
37.3 mpg US
44.8 mpg UK
Mercedes-BenzSLK (R172)SLK 250 CDI
5.0 L/100 km
47.0 mpg US
56.5 mpg UK

The biggest fuel consumption difference is between Mercedes-Benz SLK (R172) SLK 250 CDI and AUDI TT Roadster (8S) Facelift 2018 40 TFSI: 1.3 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
AUDITT Roadster (8S)Facelift 201840 TFSI
137 hp/t
102 kW/t
7.3 kg/hp
Mercedes-BenzSLK (R172)SLK 250 CDI
135 hp/t
100 kW/t
7.4 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
AUDITT Roadster (8S)Facelift 201840 TFSI
794 km
493 mi
Mercedes-BenzSLK (R172)SLK 250 CDI
1,200 km
746 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
AUDITT Roadster (8S)Facelift 201840 TFSI
197 hp
147 kW
6.9 s
247 km/h
153 mph
Mercedes-BenzSLK (R172)SLK 250 CDI
204 hp
152 kW
6.7 s
243 km/h
151 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
AUDITT Roadster (8S)Facelift 201840 TFSI
Power
197 hp
147 kW
0-100 km/h6.9 s
Top speed
247 km/h
153 mph
Doors/seats
2 doors
2 seats
Trunk-
Length
4,191 mm
165.0 in
Height
1,355 mm
53.3 in
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

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
AUDITT Roadster (8S)Facelift 201840 TFSI
Power
197 hp
147 kW
0-100 km/h6.9 s
Top speed
247 km/h
153 mph
6.3 L/100 km
37.3 mpg US
44.8 mpg UK
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

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
AUDITT Roadster (8S)Facelift 201840 TFSI
6.3 L/100 km
37.3 mpg US
44.8 mpg UK
6.9 s
Mercedes-BenzSLK (R172)SLK 250 CDI
5.0 L/100 km
47.0 mpg US
56.5 mpg UK
6.7 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
AUDITT Roadster (8S)Facelift 201840 TFSI
137 hp/t
102 kW/t
7.3 kg/hp
6.3 L/100 km
37.3 mpg US
44.8 mpg UK
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

Detailed score breakdown

Detailed score breakdown
VehicleAUDITT Roadster (8S)Facelift 201840 TFSIMercedes-BenzSLK (R172)SLK 250 CDI
Power
197 hp
147 kW
204 hp
152 kW
Torque
320 Nm
236 lb-ft
500 Nm
369 lb-ft
Acceleration
6.9 s
6.7 s
Top speed
247 km/h
153 mph
243 km/h
151 mph
Lightness
1,435 kg
3,164 lb
1,515 kg
3,340 lb
Fuel consumption
6.3 L/100 km
37.3 mpg US
44.8 mpg UK
5.0 L/100 km
47.0 mpg US
56.5 mpg UK
Practicality
Doors/seats
2 doors
2 seats
Trunk-
Length
4,191 mm
165.0 in
Height
1,355 mm
53.3 in
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
Range score
794 km
493 mi
1,200 km
746 mi
CO2 score
145 g/km
132 g/km
Trunk score
-
225 L
7.9 cu ft
Power-to-weight score
137 hp/t
102 kW/t
7.3 kg/hp
135 hp/t
100 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
VehicleAUDI TT Roadster (8S) Facelift 2018 40 TFSIMercedes-Benz SLK (R172) SLK 250 CDI
Consumption6.3 L/100 km37.3 mpg US44.8 mpg UK5 L/100 km47 mpg US56.5 mpg UK
Cost / 100 km11.03 LC100 km8.75 LC100 km
Cost / 100 mi17.74 LC100 mi14.08 LC100 mi
Annual fuel used945 L250 US gal208 UK gal750 L198 US gal165 UK gal
Annual fuel cost1,654 LC/year1,313 LC/year

Head-to-head comparisons

AUDI TT Roadster (8S) Facelift 2018 40 TFSI

  • Is 80 kg lighter
  • Has 4 km/h (2 mph) higher top speed
  • Has 3 hp/t better power-to-weight

Pros

  • Highest top speed
  • Lightest
  • Best power-to-weight ratio

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Highest combined fuel consumption
  • Highest CO2 emissions

Mercedes-Benz SLK (R172) SLK 250 CDI

  • Has 7 hp more
  • Has 180 Nm more
  • Is 0.2 s quicker from 0-100 km/h
  • Uses 1.3 L/100 km less fuel
  • Has 406 km (252 mi) more estimated range
  • Emits 13 g/km less CO2

Pros

  • Quickest 0-100 km/h in this comparison
  • Most powerful
  • Highest torque
  • Lowest combined fuel consumption
  • Best estimated range

Cons

  • Heaviest
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
AUDI TT Roadster (8S) 40 TFSI
Mercedes-Benz SLK (R172) SLK 250 CDI
Compare selected cars
2 vehicles selected

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AUDI TT Roadster (8S) · Facelift 2018 40 TFSI vs Mercedes-Benz SLK (R172) SLK 250 CDI - car comparison - FastVsFaster