Car comparison

Mercedes-Benz SLK (R172) SLK 350 V6vsMorgan Roadster 3.7 V6

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

Morgan Roadster

3.7 V6

280 hpGasolineRWDManualNaturally aspiratedRoadster2004-2019

Comparison overview

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

Best choices

Mercedes-Benz SLK (R172) SLK 350 V6

  • Fastest top speed
    265 km/h
    165 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    306 hp
    228 kW
  • Lowest combined fuel consumption
    7.1 L/100 km
    33.1 mpg US
    39.8 mpg UK
  • Lowest city consumption
    9.9 L/100 km
    23.8 mpg US
    28.5 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 performance score
    66/100
  • Best economy score
    88/100

Morgan Roadster 3.7 V6

  • Quickest 0-100 km/h
    5.5 s
  • Highest torque
    380 Nm
    280 lb-ft
  • Lightest
    950 kg
    2,094 lb
  • Best power-to-weight
    295 hp/t
    220 kW/t
    3.4 kg/hp
  • Best overall score
    58/100
  • Best practicality score
    42/100

Specification comparison

Specification comparison
ModelMercedes-BenzSLK (R172)SLK 350 V6MorganRoadster3.7 V6
Power
306hp228kW
280hp209kW
Torque
370Nm273lb-ft
380Nm280lb-ft
Curb weight
1,465kg3,230lb
950kg2,094lb
Gross weight
1,855kg4,090lb
-
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Calculated
Unrestricted
245 km/h152 mph
Restricted
225 km/h140 mph
Calculated
To 99% top speed
72.3s99% target: 262 km/h / 163 mph
Calculated
54.1s99% target: 243 km/h / 151 mph
Calculated
0-100 km/h
5.6s
5.5s
0-200 km/h
19.0s
Calculated
18.9s
Calculated
0-60 mph
5.3s
Calculated
5.2s
Calculated
Fuel consumption
7.1L/100 km33.1mpg US39.8mpg UK
10.3L/100 km22.8mpg US27.4mpg UK
Fuel consumption city
9.9L/100 km23.8mpg US28.5mpg UK
15.1L/100 km15.6mpg US18.7mpg UK
Fuel consumption highway
5.5L/100 km42.8mpg US51.4mpg UK
7.3L/100 km32.2mpg US38.7mpg UK
Quarter mile
13.7s
Calculated
13.6s
Calculated
Power-to-weight
209hp/t156kW/t95hp/1000 lb
Calculated
295hp/t220kW/t134hp/1000 lb
Calculated
Torque-to-weight
253Nm/t169lb-ft/ton
Calculated
400Nm/t268lb-ft/ton
Calculated
Estimated range
845km525mi
Calculated
534km332mi
Calculated
Displacement
3,498cc213cu in
-
Length
4,134mm163in
4,010mm158in
Width
1,810mm71in
1,720mm68in
Height
1,301mm51in
1,220mm48in
Wheelbase
2,430mm96in
-
Front track
1,559mm61in
-
Rear track
1,565mm62in
-
Trunk volume
225L
-
Max trunk volume
335L
-
Doors
2
2
Seats
2
4
Fuel tank
60L
55L
CO2 emissions
167g/km
230g/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 V6Morgan Roadster 3.7 V6PowerTorque
  • Mercedes-Benz SLK (R172) SLK 350 V6: Power / Torque
  • Morgan Roadster 3.7 V6: 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
MorganRoadster3.7 V66,000 rpm-6,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricMercedes-BenzSLK (R172)SLK 350 V6MorganRoadster3.7 V6
Acceleration checkpoints
0-60 mph
0-97 km/h
5.3 s
5.2 s
0-100 km/h
0-62 mph
5.6 s
5.5 s
0-200 km/h
0-124 mph
19.0 s
18.9 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Limited
Unrestricted
245 km/h152 mph
Restricted
225 km/h140 mph
Likely limited
Drag race simulation
60 ft
18 m
2.3 s
2.4 s
330 ft
101 m
6.0 s
6.0 s
1/8 mile
201 m
9.0 s
9.0 s
1000 ft
305 m
11.5 s
11.5 s
1/4 mile
402 m
13.7 s
13.6 s
Trap speed
1/4 mile
402 m
172 km/h
107 mph
174 km/h
108 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
MorganRoadster3.7 V6
280 hp
209 kW

Mercedes-Benz SLK (R172) SLK 350 V6 has 26 hp more than Morgan Roadster 3.7 V6.

The biggest power difference is between Morgan Roadster 3.7 V6 and Mercedes-Benz SLK (R172) SLK 350 V6: 26 hp (19 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
MorganRoadster3.7 V6
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
MorganRoadster3.7 V6
950 kg
2,094 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
MorganRoadster3.7 V6
Unrestricted
245 km/h152 mph
Restricted
225 km/h140 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
MorganRoadster3.7 V65.5 s

Although Mercedes-Benz SLK (R172) SLK 350 V6 has more power, Morgan Roadster 3.7 V6 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Morgan Roadster 3.7 V6 and Mercedes-Benz SLK (R172) SLK 350 V6: 0.1 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
MorganRoadster3.7 V6
10.3 L/100 km
22.8 mpg US
27.4 mpg UK

The biggest fuel consumption difference is between Mercedes-Benz SLK (R172) SLK 350 V6 and Morgan Roadster 3.7 V6: 3.2 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 350 V6
209 hp/t
156 kW/t
4.8 kg/hp
MorganRoadster3.7 V6
295 hp/t
220 kW/t
3.4 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
Mercedes-BenzSLK (R172)SLK 350 V6
845 km
525 mi
MorganRoadster3.7 V6
534 km
332 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
MorganRoadster3.7 V6
280 hp
209 kW
5.5 s
Unrestricted
245 km/h152 mph
Restricted
225 km/h140 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
MorganRoadster3.7 V6
Power
280 hp
209 kW
0-100 km/h5.5 s
Top speed
Unrestricted
245 km/h152 mph
Restricted
225 km/h140 mph
Doors/seats
2 doors
4 seats
Trunk-
Length
4,010 mm
157.9 in
Height
1,220 mm
48.0 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
MorganRoadster3.7 V6
Power
280 hp
209 kW
0-100 km/h5.5 s
Top speed
Unrestricted
245 km/h152 mph
Restricted
225 km/h140 mph
10.3 L/100 km
22.8 mpg US
27.4 mpg UK

Mercedes-Benz SLK (R172) SLK 350 V6 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
MorganRoadster3.7 V6
10.3 L/100 km
22.8 mpg US
27.4 mpg UK
5.5 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
MorganRoadster3.7 V6
295 hp/t
220 kW/t
3.4 kg/hp
10.3 L/100 km
22.8 mpg US
27.4 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleMercedes-BenzSLK (R172)SLK 350 V6MorganRoadster3.7 V6
Power
306 hp
228 kW
280 hp
209 kW
Torque
370 Nm
273 lb-ft
380 Nm
280 lb-ft
Acceleration
5.6 s
5.5 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Unrestricted
245 km/h152 mph
Restricted
225 km/h140 mph
Lightness
1,465 kg
3,230 lb
950 kg
2,094 lb
Fuel consumption
7.1 L/100 km
33.1 mpg US
39.8 mpg UK
10.3 L/100 km
22.8 mpg US
27.4 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
4 seats
Trunk-
Length
4,010 mm
157.9 in
Height
1,220 mm
48.0 in
Range score
845 km
525 mi
534 km
332 mi
CO2 score
167 g/km
230 g/km
Trunk score
225 L
7.9 cu ft
-
Power-to-weight score
209 hp/t
156 kW/t
4.8 kg/hp
295 hp/t
220 kW/t
3.4 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 350 V6Morgan Roadster 3.7 V6
Consumption7.1 L/100 km33.1 mpg US39.8 mpg UK10.3 L/100 km22.8 mpg US27.4 mpg UK
Cost / 100 km12.42 LC100 km18.03 LC100 km
Cost / 100 mi20.00 LC100 mi29.01 LC100 mi
Annual fuel used1,065 L281 US gal234 UK gal1,545 L408 US gal340 UK gal
Annual fuel cost1,864 LC/year2,704 LC/year

Head-to-head comparisons

Mercedes-Benz SLK (R172) SLK 350 V6

  • Has 26 hp more
  • Has 20 km/h (12 mph) higher top speed
  • Uses 3.2 L/100 km less fuel
  • Has 311 km (193 mi) more estimated range
  • Emits 63 g/km less CO2

Pros

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

Cons

  • Slowest 0-100 km/h
  • Heaviest

Morgan Roadster 3.7 V6

  • Has 10 Nm more
  • Is 515 kg lighter
  • Is 0.1 s quicker from 0-100 km/h
  • Has 86 hp/t better power-to-weight

Pros

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

Cons

  • Lowest power
  • 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
Morgan Roadster 3.7 V6
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