Car comparison

Mercedes-Benz SLK (R171) · Facelift 2008 AMG SLK 55 V8vsMercedes-Benz G-class (W463) · Facelift 2008 G 500 V8

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

New comparison

Mercedes-Benz SLK (R171) · Facelift 2008

AMG SLK 55 V8

360 hp5439 ccGasolineRWDAutomaticNaturally aspiratedRoadster2008-2011
VS

Mercedes-Benz G-class (W463) · Facelift 2008

G 500 V8

388 hp5461 ccGasolineAWDAutomaticNaturally aspirated2008-2010

Comparison overview

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

Best choices

Mercedes-Benz SLK (R171) Facelift 2008 AMG SLK 55 V8

  • Quickest 0-100 km/h
    4.9 s
  • Fastest top speed
    270 km/h
    168 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Lightest
    1,500 kg
    3,307 lb
  • Best power-to-weight
    240 hp/t
    179 kW/t
    4.2 kg/hp
  • Lowest combined fuel consumption
    12.0 L/100 km
    19.6 mpg US
    23.5 mpg UK
  • Lowest city consumption
    17.7 L/100 km
    13.3 mpg US
    16.0 mpg UK
  • Lowest highway consumption
    8.8 L/100 km
    26.7 mpg US
    32.1 mpg UK
  • Best performance score
    73/100
  • Best economy score
    75/100

Specification comparison

Specification comparison
ModelMercedes-BenzSLK (R171)Facelift 2008AMG SLK 55 V8Mercedes-BenzG-class (W463)Facelift 2008G 500 V8
Power
360hp268kW
388hp289kW
Torque
510Nm376lb-ft
530Nm391lb-ft
Curb weight
1,500kg3,307lb
2,170kg4,784lb
Gross weight
1,850kg4,079lb
2,850kg6,283lb
Top speed
Unrestricted
270 km/h168 mph
Restricted
250 km/h155 mph
Calculated
Unrestricted
220 km/h137 mph
Restricted
210 km/h130 mph
Calculated
To 99% top speed
61.9s99% target: 267 km/h / 166 mph
Calculated
95.7s99% target: 218 km/h / 135 mph
Calculated
0-100 km/h
4.9s
5.9s
0-200 km/h
16.0s
Calculated
39.1s
Calculated
0-60 mph
4.7s
Calculated
5.5s
Calculated
Fuel consumption
12L/100 km19.6mpg US23.5mpg UK
14.7L/100 km16mpg US19.2mpg UK
Fuel consumption city
17.7L/100 km13.3mpg US16.0mpg UK
19.3L/100 km12.2mpg US14.6mpg UK
Fuel consumption highway
8.8L/100 km26.7mpg US32.1mpg UK
12L/100 km19.6mpg US23.5mpg UK
Quarter mile
12.9s
Calculated
14.3s
Calculated
Power-to-weight
240hp/t179kW/t109hp/1000 lb
Calculated
179hp/t133kW/t81hp/1000 lb
Calculated
Torque-to-weight
340Nm/t227lb-ft/ton
Calculated
244Nm/t163lb-ft/ton
Calculated
Estimated range
583km362mi
Calculated
653km406mi
Calculated
Displacement
5,439cc332cu in
5,461cc333cu in
Length
4,103mm162in
4,212mm166in
Width
1,788mm70in
1,760mm69in
Height
1,271mm50in
1,931mm76in
Wheelbase
2,430mm96in
2,400mm94in
Front track
1,524mm60in
1,475mm58in
Rear track
1,549mm61in
1,475mm58in
Ground clearance-
205mm8in
Trunk volume
208L
250L
Max trunk volume-
1,580L
Doors
2
3
Seats
2
5
Fuel tank
70L
96L

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 (R171) Facelift 2008 AMG SLK 55 V8Mercedes-Benz G-class (W463) Facelift 2008 G 500 V8PowerTorque
  • Mercedes-Benz SLK (R171) Facelift 2008 AMG SLK 55 V8: Power / Torque
  • Mercedes-Benz G-class (W463) Facelift 2008 G 500 V8: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Mercedes-BenzSLK (R171)Facelift 2008AMG SLK 55 V85,750 rpm4,000 rpm6,000 rpm
Mercedes-BenzG-class (W463)Facelift 2008G 500 V86,000 rpm2,800-4,800 rpm6,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricMercedes-BenzSLK (R171)Facelift 2008AMG SLK 55 V8Mercedes-BenzG-class (W463)Facelift 2008G 500 V8
Acceleration checkpoints
0-60 mph
0-97 km/h
4.7 s
5.5 s
0-100 km/h
0-62 mph
4.9 s
5.9 s
0-200 km/h
0-124 mph
16.0 s
39.1 s
Top speed
Unrestricted
270 km/h168 mph
Restricted
250 km/h155 mph
Limited
Unrestricted
220 km/h137 mph
Restricted
210 km/h130 mph
Likely limited
Drag race simulation
60 ft
18 m
2.2 s
2.0 s
330 ft
101 m
5.7 s
5.8 s
1/8 mile
201 m
8.5 s
9.0 s
1000 ft
305 m
10.9 s
11.9 s
1/4 mile
402 m
12.9 s
14.3 s
Trap speed
1/4 mile
402 m
181 km/h
113 mph
151 km/h
94 mph

Power comparison

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

Chart data table
VehicleValue
Mercedes-BenzSLK (R171)Facelift 2008AMG SLK 55 V8
360 hp
268 kW
Mercedes-BenzG-class (W463)Facelift 2008G 500 V8
388 hp
289 kW

Mercedes-Benz G-class (W463) Facelift 2008 G 500 V8 has 28 hp more than Mercedes-Benz SLK (R171) Facelift 2008 AMG SLK 55 V8.

The biggest power difference is between Mercedes-Benz SLK (R171) Facelift 2008 AMG SLK 55 V8 and Mercedes-Benz G-class (W463) Facelift 2008 G 500 V8: 28 hp (21 kW).

Torque comparison

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

Chart data table
VehicleValue
Mercedes-BenzSLK (R171)Facelift 2008AMG SLK 55 V8
510 Nm
376 lb-ft
Mercedes-BenzG-class (W463)Facelift 2008G 500 V8
530 Nm
391 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
Mercedes-BenzSLK (R171)Facelift 2008AMG SLK 55 V8
1,500 kg
3,307 lb
Mercedes-BenzG-class (W463)Facelift 2008G 500 V8
2,170 kg
4,784 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 (R171)Facelift 2008AMG SLK 55 V8
Unrestricted
270 km/h168 mph
Restricted
250 km/h155 mph
Mercedes-BenzG-class (W463)Facelift 2008G 500 V8
Unrestricted
220 km/h137 mph
Restricted
210 km/h130 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
Mercedes-BenzSLK (R171)Facelift 2008AMG SLK 55 V84.9 s
Mercedes-BenzG-class (W463)Facelift 2008G 500 V85.9 s

Although Mercedes-Benz G-class (W463) Facelift 2008 G 500 V8 has more power, Mercedes-Benz SLK (R171) Facelift 2008 AMG SLK 55 V8 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Mercedes-Benz SLK (R171) Facelift 2008 AMG SLK 55 V8 and Mercedes-Benz G-class (W463) Facelift 2008 G 500 V8: 1.0 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 (R171)Facelift 2008AMG SLK 55 V8
12.0 L/100 km
19.6 mpg US
23.5 mpg UK
Mercedes-BenzG-class (W463)Facelift 2008G 500 V8
14.7 L/100 km
16.0 mpg US
19.2 mpg UK

The biggest fuel consumption difference is between Mercedes-Benz SLK (R171) Facelift 2008 AMG SLK 55 V8 and Mercedes-Benz G-class (W463) Facelift 2008 G 500 V8: 2.7 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 (R171)Facelift 2008AMG SLK 55 V8
240 hp/t
179 kW/t
4.2 kg/hp
Mercedes-BenzG-class (W463)Facelift 2008G 500 V8
179 hp/t
133 kW/t
5.6 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
Mercedes-BenzSLK (R171)Facelift 2008AMG SLK 55 V8
583 km
362 mi
Mercedes-BenzG-class (W463)Facelift 2008G 500 V8
653 km
406 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Mercedes-BenzSLK (R171)Facelift 2008AMG SLK 55 V8
360 hp
268 kW
4.9 s
Unrestricted
270 km/h168 mph
Restricted
250 km/h155 mph
Mercedes-BenzG-class (W463)Facelift 2008G 500 V8
388 hp
289 kW
5.9 s
Unrestricted
220 km/h137 mph
Restricted
210 km/h130 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 (R171)Facelift 2008AMG SLK 55 V8
Power
360 hp
268 kW
0-100 km/h4.9 s
Top speed
Unrestricted
270 km/h168 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
2 seats
Trunk
208 L
7.3 cu ft
Length
4,103 mm
161.5 in
Height
1,271 mm
50.0 in
Mercedes-BenzG-class (W463)Facelift 2008G 500 V8
Power
388 hp
289 kW
0-100 km/h5.9 s
Top speed
Unrestricted
220 km/h137 mph
Restricted
210 km/h130 mph
Doors/seats
3 doors
5 seats
Trunk
250 L
8.8 cu ft
Length
4,212 mm
165.8 in
Height
1,931 mm
76.0 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 (R171)Facelift 2008AMG SLK 55 V8
Power
360 hp
268 kW
0-100 km/h4.9 s
Top speed
Unrestricted
270 km/h168 mph
Restricted
250 km/h155 mph
12.0 L/100 km
19.6 mpg US
23.5 mpg UK
Mercedes-BenzG-class (W463)Facelift 2008G 500 V8
Power
388 hp
289 kW
0-100 km/h5.9 s
Top speed
Unrestricted
220 km/h137 mph
Restricted
210 km/h130 mph
14.7 L/100 km
16.0 mpg US
19.2 mpg UK

Mercedes-Benz SLK (R171) Facelift 2008 AMG SLK 55 V8 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 (R171)Facelift 2008AMG SLK 55 V8
12.0 L/100 km
19.6 mpg US
23.5 mpg UK
4.9 s
Mercedes-BenzG-class (W463)Facelift 2008G 500 V8
14.7 L/100 km
16.0 mpg US
19.2 mpg UK
5.9 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 (R171)Facelift 2008AMG SLK 55 V8
240 hp/t
179 kW/t
4.2 kg/hp
12.0 L/100 km
19.6 mpg US
23.5 mpg UK
Mercedes-BenzG-class (W463)Facelift 2008G 500 V8
179 hp/t
133 kW/t
5.6 kg/hp
14.7 L/100 km
16.0 mpg US
19.2 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleMercedes-BenzSLK (R171)Facelift 2008AMG SLK 55 V8Mercedes-BenzG-class (W463)Facelift 2008G 500 V8
Power
360 hp
268 kW
388 hp
289 kW
Torque
510 Nm
376 lb-ft
530 Nm
391 lb-ft
Acceleration
4.9 s
5.9 s
Top speed
Unrestricted
270 km/h168 mph
Restricted
250 km/h155 mph
Unrestricted
220 km/h137 mph
Restricted
210 km/h130 mph
Lightness
1,500 kg
3,307 lb
2,170 kg
4,784 lb
Fuel consumption
12.0 L/100 km
19.6 mpg US
23.5 mpg UK
14.7 L/100 km
16.0 mpg US
19.2 mpg UK
Practicality
Doors/seats
2 doors
2 seats
Trunk
208 L
7.3 cu ft
Length
4,103 mm
161.5 in
Height
1,271 mm
50.0 in
Doors/seats
3 doors
5 seats
Trunk
250 L
8.8 cu ft
Length
4,212 mm
165.8 in
Height
1,931 mm
76.0 in
Range score
583 km
362 mi
653 km
406 mi
Trunk score
208 L
7.3 cu ft
250 L
8.8 cu ft
Power-to-weight score
240 hp/t
179 kW/t
4.2 kg/hp
179 hp/t
133 kW/t
5.6 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 (R171) Facelift 2008 AMG SLK 55 V8Mercedes-Benz G-class (W463) Facelift 2008 G 500 V8
Consumption12 L/100 km19.6 mpg US23.5 mpg UK14.7 L/100 km16 mpg US19.2 mpg UK
Cost / 100 km21.00 LC100 km25.72 LC100 km
Cost / 100 mi33.80 LC100 mi41.40 LC100 mi
Annual fuel used1,800 L476 US gal396 UK gal2,205 L582 US gal485 UK gal
Annual fuel cost3,150 LC/year3,859 LC/year

Head-to-head comparisons

Mercedes-Benz SLK (R171) Facelift 2008 AMG SLK 55 V8

  • Is 670 kg lighter
  • Is 1.0 s quicker from 0-100 km/h
  • Has 50 km/h (31 mph) higher top speed
  • Uses 2.7 L/100 km less fuel
  • Has 61 hp/t better power-to-weight

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Lightest
  • Lowest combined fuel consumption
  • Best power-to-weight ratio

Cons

  • Lowest power
  • Smallest trunk

Mercedes-Benz G-class (W463) Facelift 2008 G 500 V8

  • Has 28 hp more
  • Has 20 Nm more
  • Has 70 km (43 mi) more estimated range
  • Has 42 L more trunk volume

Pros

  • Most powerful
  • Highest torque
  • Best estimated range
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Highest combined fuel consumption
  • Heaviest
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
Mercedes-Benz SLK (R171) AMG SLK 55 V8
Mercedes-Benz G-class (W463) G 500 V8
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2 vehicles selected

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