Car comparison

Mercedes-Benz CLK (A209) AMG CLK 55 V8vsBMW 6 Series Convertible (E64) 650i

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

New comparison

Mercedes-Benz CLK (A209)

AMG CLK 55 V8

367 hp5439 ccGasolineRWDAutomaticNaturally aspiratedCabriolet / convertible2003-2005
VS

BMW 6 Series Convertible (E64)

650i

367 hp4799 ccGasolineRWDManualNaturally aspiratedCabriolet / convertible2005-2007

Comparison overview

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

Best choices

Mercedes-Benz CLK (A209) AMG CLK 55 V8

  • Quickest 0-100 km/h
    5.4 s
  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    367 hp
    274 kW
  • Highest torque
    510 Nm
    376 lb-ft
  • Lightest
    1,745 kg
    3,847 lb
  • Best power-to-weight
    210 hp/t
    157 kW/t
    4.8 kg/hp
  • Lowest combined fuel consumption
    12.3 L/100 km
    19.1 mpg US
    23.0 mpg UK
  • Lowest city consumption
    18.2 L/100 km
    12.9 mpg US
    15.5 mpg UK
  • Lowest highway consumption
    8.9 L/100 km
    26.4 mpg US
    31.7 mpg UK
  • Best overall score
    62/100
  • Best performance score
    71/100
  • Best economy score
    74/100

Specification comparison

Specification comparison
ModelMercedes-BenzCLK (A209)AMG CLK 55 V8BMW6 Series Convertible (E64)650i
Power
367hp274kW
367hp274kW
Torque
510Nm376lb-ft
490Nm361lb-ft
Curb weight
1,745kg3,847lb
1,850kg4,079lb
Gross weight
2,225kg4,905lb
2,250kg4,960lb
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
70.4s99% target: 257 km/h / 160 mph
Calculated
78.9s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
5.4s
5.7s
0-200 km/h
19.1s
Calculated
20.7s
Calculated
0-60 mph
5.1s
Calculated
5.4s
Calculated
Fuel consumption
12.3L/100 km19.1mpg US23.0mpg UK
12.9L/100 km18.2mpg US21.9mpg UK
Fuel consumption city
18.2L/100 km12.9mpg US15.5mpg UK
19.1L/100 km12.3mpg US14.8mpg UK
Fuel consumption highway
8.9L/100 km26.4mpg US31.7mpg UK
9.3L/100 km25.3mpg US30.4mpg UK
Quarter mile
13.5s
Calculated
13.8s
Calculated
Power-to-weight
210hp/t157kW/t95hp/1000 lb
Calculated
198hp/t148kW/t90hp/1000 lb
Calculated
Torque-to-weight
292Nm/t196lb-ft/ton
Calculated
265Nm/t177lb-ft/ton
Calculated
Estimated range
504km313mi
Calculated
543km337mi
Calculated
Displacement
5,439cc332cu in
4,799cc293cu in
Length
4,638mm183in
4,820mm190in
Width
1,740mm69in
1,855mm73in
Height
1,405mm55in
1,373mm54in
Wheelbase
2,715mm107in
2,780mm109in
Front track
1,495mm59in
1,558mm61in
Rear track
1,474mm58in
1,596mm63in
Trunk volume
276L
300L
Max trunk volume
390L
350L
Doors
2
2
Seats
4
4
Fuel tank
62L
70L

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 CLK (A209) AMG CLK 55 V8BMW 6 Series Convertible (E64) 650iPowerTorque
  • Mercedes-Benz CLK (A209) AMG CLK 55 V8: Power / Torque
  • BMW 6 Series Convertible (E64) 650i: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Mercedes-BenzCLK (A209)AMG CLK 55 V85,750 rpm4,000 rpm6,000 rpm
BMW6 Series Convertible (E64)650i6,300 rpm3,400 rpm6,550 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricMercedes-BenzCLK (A209)AMG CLK 55 V8BMW6 Series Convertible (E64)650i
Acceleration checkpoints
0-60 mph
0-97 km/h
5.1 s
5.4 s
0-100 km/h
0-62 mph
5.4 s
5.7 s
0-200 km/h
0-124 mph
19.1 s
20.7 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Limited
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
Drag race simulation
60 ft
18 m
2.3 s
2.3 s
330 ft
101 m
5.9 s
6.0 s
1/8 mile
201 m
8.9 s
9.0 s
1000 ft
305 m
11.4 s
11.6 s
1/4 mile
402 m
13.5 s
13.8 s
Trap speed
1/4 mile
402 m
172 km/h
107 mph
168 km/h
104 mph

Power comparison

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

Chart data table
VehicleValue
Mercedes-BenzCLK (A209)AMG CLK 55 V8
367 hp
274 kW
BMW6 Series Convertible (E64)650i
367 hp
274 kW

Torque comparison

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

Chart data table
VehicleValue
Mercedes-BenzCLK (A209)AMG CLK 55 V8
510 Nm
376 lb-ft
BMW6 Series Convertible (E64)650i
490 Nm
361 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
Mercedes-BenzCLK (A209)AMG CLK 55 V8
1,745 kg
3,847 lb
BMW6 Series Convertible (E64)650i
1,850 kg
4,079 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-BenzCLK (A209)AMG CLK 55 V8
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
BMW6 Series Convertible (E64)650i
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
Mercedes-BenzCLK (A209)AMG CLK 55 V85.4 s
BMW6 Series Convertible (E64)650i5.7 s

The biggest 0-100 km/h difference is between Mercedes-Benz CLK (A209) AMG CLK 55 V8 and BMW 6 Series Convertible (E64) 650i: 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-BenzCLK (A209)AMG CLK 55 V8
12.3 L/100 km
19.1 mpg US
23.0 mpg UK
BMW6 Series Convertible (E64)650i
12.9 L/100 km
18.2 mpg US
21.9 mpg UK

The biggest fuel consumption difference is between Mercedes-Benz CLK (A209) AMG CLK 55 V8 and BMW 6 Series Convertible (E64) 650i: 0.6 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-BenzCLK (A209)AMG CLK 55 V8
210 hp/t
157 kW/t
4.8 kg/hp
BMW6 Series Convertible (E64)650i
198 hp/t
148 kW/t
5.0 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
Mercedes-BenzCLK (A209)AMG CLK 55 V8
504 km
313 mi
BMW6 Series Convertible (E64)650i
543 km
337 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Mercedes-BenzCLK (A209)AMG CLK 55 V8
367 hp
274 kW
5.4 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
BMW6 Series Convertible (E64)650i
367 hp
274 kW
5.7 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 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-BenzCLK (A209)AMG CLK 55 V8
Power
367 hp
274 kW
0-100 km/h5.4 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
4 seats
Trunk
276 L
9.7 cu ft
Length
4,638 mm
182.6 in
Height
1,405 mm
55.3 in
BMW6 Series Convertible (E64)650i
Power
367 hp
274 kW
0-100 km/h5.7 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
4 seats
Trunk
300 L
10.6 cu ft
Length
4,820 mm
189.8 in
Height
1,373 mm
54.1 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-BenzCLK (A209)AMG CLK 55 V8
Power
367 hp
274 kW
0-100 km/h5.4 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
12.3 L/100 km
19.1 mpg US
23.0 mpg UK
BMW6 Series Convertible (E64)650i
Power
367 hp
274 kW
0-100 km/h5.7 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
12.9 L/100 km
18.2 mpg US
21.9 mpg UK

Mercedes-Benz CLK (A209) AMG CLK 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-BenzCLK (A209)AMG CLK 55 V8
12.3 L/100 km
19.1 mpg US
23.0 mpg UK
5.4 s
BMW6 Series Convertible (E64)650i
12.9 L/100 km
18.2 mpg US
21.9 mpg UK
5.7 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
Mercedes-BenzCLK (A209)AMG CLK 55 V8
210 hp/t
157 kW/t
4.8 kg/hp
12.3 L/100 km
19.1 mpg US
23.0 mpg UK
BMW6 Series Convertible (E64)650i
198 hp/t
148 kW/t
5.0 kg/hp
12.9 L/100 km
18.2 mpg US
21.9 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleMercedes-BenzCLK (A209)AMG CLK 55 V8BMW6 Series Convertible (E64)650i
Power
367 hp
274 kW
367 hp
274 kW
Torque
510 Nm
376 lb-ft
490 Nm
361 lb-ft
Acceleration
5.4 s
5.7 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,745 kg
3,847 lb
1,850 kg
4,079 lb
Fuel consumption
12.3 L/100 km
19.1 mpg US
23.0 mpg UK
12.9 L/100 km
18.2 mpg US
21.9 mpg UK
Practicality
Doors/seats
2 doors
4 seats
Trunk
276 L
9.7 cu ft
Length
4,638 mm
182.6 in
Height
1,405 mm
55.3 in
Doors/seats
2 doors
4 seats
Trunk
300 L
10.6 cu ft
Length
4,820 mm
189.8 in
Height
1,373 mm
54.1 in
Range score
504 km
313 mi
543 km
337 mi
Trunk score
276 L
9.7 cu ft
300 L
10.6 cu ft
Power-to-weight score
210 hp/t
157 kW/t
4.8 kg/hp
198 hp/t
148 kW/t
5.0 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 CLK (A209) AMG CLK 55 V8BMW 6 Series Convertible (E64) 650i
Consumption12.3 L/100 km19.1 mpg US23 mpg UK12.9 L/100 km18.2 mpg US21.9 mpg UK
Cost / 100 km21.53 LC100 km22.58 LC100 km
Cost / 100 mi34.64 LC100 mi36.33 LC100 mi
Annual fuel used1,845 L487 US gal406 UK gal1,935 L511 US gal426 UK gal
Annual fuel cost3,229 LC/year3,386 LC/year

Head-to-head comparisons

Mercedes-Benz CLK (A209) AMG CLK 55 V8

  • Has 20 Nm more
  • Is 105 kg lighter
  • Is 0.3 s quicker from 0-100 km/h
  • Uses 0.6 L/100 km less fuel
  • Has 12 hp/t better power-to-weight

Pros

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

Cons

  • Smallest trunk

BMW 6 Series Convertible (E64) 650i

  • Has 39 km (24 mi) more estimated range
  • Has 24 L more trunk volume

Pros

  • Best estimated range
  • Largest trunk

Cons

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

Choose cars to compare

Brand
Model
Generation
Engine or modification
Mercedes-Benz CLK (A209) AMG CLK 55 V8
BMW 6 Series Convertible (E64) 650i
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