Car comparison

BMW M3 Convertible (E93) 4.0 V8vsBMW 6 Series Convertible (E64) · Facelift 2007 650i

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

New comparison

BMW M3 Convertible (E93)

4.0 V8

420 hp3999 ccGasolineRWDManualNaturally aspiratedCabriolet / convertible2008-2010
VS

BMW 6 Series Convertible (E64) · Facelift 2007

650i

367 hp4799 ccGasolineRWDAutomaticNaturally aspiratedCabriolet / convertible2007-2010

Comparison overview

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

Best choices

BMW 6 Series Convertible (E64) Facelift 2007 650i

  • Highest torque
    490 Nm
    361 lb-ft
  • Lowest combined fuel consumption
    10.9 L/100 km
    21.6 mpg US
    25.9 mpg UK
  • Lowest city consumption
    16.5 L/100 km
    14.3 mpg US
    17.1 mpg UK
  • Lowest highway consumption
    7.7 L/100 km
    30.5 mpg US
    36.7 mpg UK
  • Best estimated range
    642 km
    399 mi
  • Largest trunk
    300 L
  • Best economy score
    78/100
  • Best practicality score
    45/100

BMW M3 Convertible (E93) 4.0 V8

  • Quickest 0-100 km/h
    5.3 s
  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    420 hp
    313 kW
  • Lightest
    1,810 kg
    3,990 lb
  • Best power-to-weight
    232 hp/t
    173 kW/t
    4.3 kg/hp
  • Best overall score
    62/100
  • Best performance score
    71/100

Specification comparison

Specification comparison
ModelBMWM3 Convertible (E93)4.0 V8BMW6 Series Convertible (E64)Facelift 2007650i
Power
420hp313kW
367hp274kW
Torque
400Nm295lb-ft
490Nm361lb-ft
Curb weight
1,810kg3,990lb
1,860kg4,101lb
Gross weight
2,280kg5,027lb
2,260kg4,982lb
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
65.3s99% target: 257 km/h / 160 mph
Calculated
77.8s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
5.3s
5.6s
0-200 km/h
18.2s
20.4s
Calculated
0-60 mph
5.0s
Calculated
5.3s
Calculated
Fuel consumption
12.9L/100 km18.2mpg US21.9mpg UK
10.9L/100 km21.6mpg US25.9mpg UK
Fuel consumption city
18.7L/100 km12.6mpg US15.1mpg UK
16.5L/100 km14.3mpg US17.1mpg UK
Fuel consumption highway
9.6L/100 km24.5mpg US29.4mpg UK
7.7L/100 km30.5mpg US36.7mpg UK
Quarter mile
13.4s
Calculated
13.7s
Calculated
Power-to-weight
232hp/t173kW/t105hp/1000 lb
Calculated
197hp/t147kW/t89hp/1000 lb
Calculated
Torque-to-weight
221Nm/t148lb-ft/ton
Calculated
263Nm/t176lb-ft/ton
Calculated
Estimated range
488km303mi
Calculated
642km399mi
Calculated
Displacement
3,999cc244cu in
4,799cc293cu in
Length
4,615mm182in
4,820mm190in
Width
1,804mm71in
1,855mm73in
Height
1,392mm55in
1,374mm54in
Wheelbase
2,761mm109in
2,780mm109in
Front track
1,540mm61in
1,558mm61in
Rear track
1,539mm61in
1,596mm63in
Trunk volume
210L
300L
Max trunk volume
350L
350L
Doors
2
2
Seats
4
4
Fuel tank
63L
70L
CO2 emissions-
258g/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.

BMW M3 Convertible (E93) 4.0 V8BMW 6 Series Convertible (E64) Facelift 2007 650iPowerTorque
  • BMW M3 Convertible (E93) 4.0 V8: Power / Torque
  • BMW 6 Series Convertible (E64) Facelift 2007 650i: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMWM3 Convertible (E93)4.0 V88,300 rpm3,900 rpm8,550 rpm
BMW6 Series Convertible (E64)Facelift 2007650i6,300 rpm3,400 rpm6,550 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMWM3 Convertible (E93)4.0 V8BMW6 Series Convertible (E64)Facelift 2007650i
Acceleration checkpoints
0-60 mph
0-97 km/h
5.0 s
5.3 s
0-100 km/h
0-62 mph
5.3 s
5.6 s
0-200 km/h
0-124 mph
18.2 s
20.4 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
8.8 s
9.0 s
1000 ft
305 m
11.3 s
11.6 s
1/4 mile
402 m
13.4 s
13.7 s
Trap speed
1/4 mile
402 m
175 km/h
109 mph
169 km/h
105 mph

Power comparison

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

Chart data table
VehicleValue
BMWM3 Convertible (E93)4.0 V8
420 hp
313 kW
BMW6 Series Convertible (E64)Facelift 2007650i
367 hp
274 kW

BMW M3 Convertible (E93) 4.0 V8 has 53 hp more than BMW 6 Series Convertible (E64) Facelift 2007 650i.

The biggest power difference is between BMW 6 Series Convertible (E64) Facelift 2007 650i and BMW M3 Convertible (E93) 4.0 V8: 53 hp (40 kW).

Torque comparison

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

Chart data table
VehicleValue
BMWM3 Convertible (E93)4.0 V8
400 Nm
295 lb-ft
BMW6 Series Convertible (E64)Facelift 2007650i
490 Nm
361 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
BMWM3 Convertible (E93)4.0 V8
1,810 kg
3,990 lb
BMW6 Series Convertible (E64)Facelift 2007650i
1,860 kg
4,101 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
BMWM3 Convertible (E93)4.0 V8
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
BMW6 Series Convertible (E64)Facelift 2007650i
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
BMWM3 Convertible (E93)4.0 V85.3 s
BMW6 Series Convertible (E64)Facelift 2007650i5.6 s

The biggest 0-100 km/h difference is between BMW M3 Convertible (E93) 4.0 V8 and BMW 6 Series Convertible (E64) Facelift 2007 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
BMWM3 Convertible (E93)4.0 V8
12.9 L/100 km
18.2 mpg US
21.9 mpg UK
BMW6 Series Convertible (E64)Facelift 2007650i
10.9 L/100 km
21.6 mpg US
25.9 mpg UK

The biggest fuel consumption difference is between BMW 6 Series Convertible (E64) Facelift 2007 650i and BMW M3 Convertible (E93) 4.0 V8: 2.0 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
BMWM3 Convertible (E93)4.0 V8
232 hp/t
173 kW/t
4.3 kg/hp
BMW6 Series Convertible (E64)Facelift 2007650i
197 hp/t
147 kW/t
5.1 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
BMWM3 Convertible (E93)4.0 V8
488 km
303 mi
BMW6 Series Convertible (E64)Facelift 2007650i
642 km
399 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMWM3 Convertible (E93)4.0 V8
420 hp
313 kW
5.3 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
BMW6 Series Convertible (E64)Facelift 2007650i
367 hp
274 kW
5.6 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
BMWM3 Convertible (E93)4.0 V8
Power
420 hp
313 kW
0-100 km/h5.3 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
4 seats
Trunk
210 L
7.4 cu ft
Length
4,615 mm
181.7 in
Height
1,392 mm
54.8 in
BMW6 Series Convertible (E64)Facelift 2007650i
Power
367 hp
274 kW
0-100 km/h5.6 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
1,374 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
BMWM3 Convertible (E93)4.0 V8
Power
420 hp
313 kW
0-100 km/h5.3 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
BMW6 Series Convertible (E64)Facelift 2007650i
Power
367 hp
274 kW
0-100 km/h5.6 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
10.9 L/100 km
21.6 mpg US
25.9 mpg UK

BMW 6 Series Convertible (E64) Facelift 2007 650i 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
BMWM3 Convertible (E93)4.0 V8
12.9 L/100 km
18.2 mpg US
21.9 mpg UK
5.3 s
BMW6 Series Convertible (E64)Facelift 2007650i
10.9 L/100 km
21.6 mpg US
25.9 mpg UK
5.6 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
BMWM3 Convertible (E93)4.0 V8
232 hp/t
173 kW/t
4.3 kg/hp
12.9 L/100 km
18.2 mpg US
21.9 mpg UK
BMW6 Series Convertible (E64)Facelift 2007650i
197 hp/t
147 kW/t
5.1 kg/hp
10.9 L/100 km
21.6 mpg US
25.9 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMWM3 Convertible (E93)4.0 V8BMW6 Series Convertible (E64)Facelift 2007650i
Power
420 hp
313 kW
367 hp
274 kW
Torque
400 Nm
295 lb-ft
490 Nm
361 lb-ft
Acceleration
5.3 s
5.6 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,810 kg
3,990 lb
1,860 kg
4,101 lb
Fuel consumption
12.9 L/100 km
18.2 mpg US
21.9 mpg UK
10.9 L/100 km
21.6 mpg US
25.9 mpg UK
Practicality
Doors/seats
2 doors
4 seats
Trunk
210 L
7.4 cu ft
Length
4,615 mm
181.7 in
Height
1,392 mm
54.8 in
Doors/seats
2 doors
4 seats
Trunk
300 L
10.6 cu ft
Length
4,820 mm
189.8 in
Height
1,374 mm
54.1 in
Range score
488 km
303 mi
642 km
399 mi
CO2 score
-
258 g/km
Trunk score
210 L
7.4 cu ft
300 L
10.6 cu ft
Power-to-weight score
232 hp/t
173 kW/t
4.3 kg/hp
197 hp/t
147 kW/t
5.1 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
VehicleBMW M3 Convertible (E93) 4.0 V8BMW 6 Series Convertible (E64) Facelift 2007 650i
Consumption12.9 L/100 km18.2 mpg US21.9 mpg UK10.9 L/100 km21.6 mpg US25.9 mpg UK
Cost / 100 km22.58 LC100 km19.08 LC100 km
Cost / 100 mi36.33 LC100 mi30.70 LC100 mi
Annual fuel used1,935 L511 US gal426 UK gal1,635 L432 US gal360 UK gal
Annual fuel cost3,386 LC/year2,861 LC/year

Head-to-head comparisons

BMW M3 Convertible (E93) 4.0 V8

  • Has 53 hp more
  • Is 50 kg lighter
  • Is 0.3 s quicker from 0-100 km/h
  • Has 35 hp/t better power-to-weight

Pros

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

Cons

  • Highest combined fuel consumption
  • Smallest trunk

BMW 6 Series Convertible (E64) Facelift 2007 650i

  • Has 90 Nm more
  • Uses 2.0 L/100 km less fuel
  • Has 154 km (96 mi) more estimated range
  • Has 90 L more trunk volume

Pros

  • Highest torque
  • Lowest combined fuel consumption
  • Best estimated range
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Heaviest

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW M3 Convertible (E93) 4.0 V8
BMW 6 Series Convertible (E64) 650i
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2 vehicles selected

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