Car comparison

BMW 6 Series Convertible (F12) 650ivsBMW M3 Convertible (E93) 4.0 V8

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

New comparison

BMW 6 Series Convertible (F12)

650i

407 hp4395 ccGasolineAWDAutomaticTurbochargedCabriolet / convertible2011-2012
VS

BMW M3 Convertible (E93)

4.0 V8

420 hp3999 ccGasolineRWDDual-clutchNaturally aspiratedCabriolet / convertible2008-2010

Comparison overview

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

Best choices

BMW 6 Series Convertible (F12) 650i

  • Quickest 0-100 km/h
    4.9 s
  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Highest torque
    600 Nm
    443 lb-ft
  • Lowest combined fuel consumption
    11.5 L/100 km
    20.5 mpg US
    24.6 mpg UK
  • Lowest city consumption
    16.6 L/100 km
    14.2 mpg US
    17.0 mpg UK
  • Lowest highway consumption
    8.5 L/100 km
    27.7 mpg US
    33.2 mpg UK
  • Best estimated range
    609 km
    378 mi
  • Largest trunk
    300 L
  • Best overall score
    65/100
  • Best performance score
    74/100
  • Best economy score
    76/100
  • Best practicality score
    45/100

Specification comparison

Specification comparison
ModelBMW6 Series Convertible (F12)650iBMWM3 Convertible (E93)4.0 V8
Power
407hp304kW
420hp313kW
Torque
600Nm443lb-ft
400Nm295lb-ft
Curb weight
1,985kg4,376lb
1,830kg4,034lb
Gross weight
2,465kg5,434lb
2,280kg5,027lb
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
69.4s99% target: 257 km/h / 160 mph
Calculated
61.3s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
4.9s
5.1s
0-200 km/h
18.0s
Calculated
17.3s
0-60 mph
4.7s
Calculated
4.9s
Calculated
Fuel consumption
11.5L/100 km20.5mpg US24.6mpg UK
12.3L/100 km19.1mpg US23.0mpg UK
Fuel consumption city
16.6L/100 km14.2mpg US17.0mpg UK
17.3L/100 km13.6mpg US16.3mpg UK
Fuel consumption highway
8.5L/100 km27.7mpg US33.2mpg UK
9.4L/100 km25mpg US30.1mpg UK
Quarter mile
13.1s
Calculated
13.2s
Calculated
Power-to-weight
205hp/t153kW/t93hp/1000 lb
Calculated
230hp/t171kW/t104hp/1000 lb
Calculated
Torque-to-weight
302Nm/t202lb-ft/ton
Calculated
219Nm/t146lb-ft/ton
Calculated
Estimated range
609km378mi
Calculated
512km318mi
Calculated
Displacement
4,395cc268cu in
3,999cc244cu in
Length
4,894mm193in
4,615mm182in
Width
1,894mm75in
1,804mm71in
Height
1,365mm54in
1,392mm55in
Wheelbase
2,855mm112in
2,761mm109in
Front track
1,600mm63in
1,540mm61in
Rear track
1,665mm66in
1,539mm61in
Ground clearance
123mm5in
-
Trunk volume
300L
210L
Max trunk volume
350L
350L
Doors
2
2
Seats
4
4
Fuel tank
70L
63L
CO2 emissions
267g/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 6 Series Convertible (F12) 650iBMW M3 Convertible (E93) 4.0 V8PowerTorque
  • BMW 6 Series Convertible (F12) 650i: Power / Torque
  • BMW M3 Convertible (E93) 4.0 V8: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMW6 Series Convertible (F12)650i5,500-6,400 rpm1,750-4,500 rpm6,650 rpm
BMWM3 Convertible (E93)4.0 V88,300 rpm3,900 rpm8,550 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMW6 Series Convertible (F12)650iBMWM3 Convertible (E93)4.0 V8
Acceleration checkpoints
0-60 mph
0-97 km/h
4.7 s
4.9 s
0-100 km/h
0-62 mph
4.9 s
5.1 s
0-200 km/h
0-124 mph
18.0 s
17.3 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Limited
Drag race simulation
60 ft
18 m
2.1 s
2.2 s
330 ft
101 m
5.6 s
5.8 s
1/8 mile
201 m
8.5 s
8.7 s
1000 ft
305 m
11.0 s
11.1 s
1/4 mile
402 m
13.1 s
13.2 s
Trap speed
1/4 mile
402 m
175 km/h
109 mph
177 km/h
110 mph

Power comparison

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

Chart data table
VehicleValue
BMW6 Series Convertible (F12)650i
407 hp
304 kW
BMWM3 Convertible (E93)4.0 V8
420 hp
313 kW

BMW M3 Convertible (E93) 4.0 V8 has 13 hp more than BMW 6 Series Convertible (F12) 650i.

The biggest power difference is between BMW 6 Series Convertible (F12) 650i and BMW M3 Convertible (E93) 4.0 V8: 13 hp (10 kW).

Torque comparison

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

Chart data table
VehicleValue
BMW6 Series Convertible (F12)650i
600 Nm
443 lb-ft
BMWM3 Convertible (E93)4.0 V8
400 Nm
295 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
BMW6 Series Convertible (F12)650i
1,985 kg
4,376 lb
BMWM3 Convertible (E93)4.0 V8
1,830 kg
4,034 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
BMW6 Series Convertible (F12)650i
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
BMWM3 Convertible (E93)4.0 V8
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
BMW6 Series Convertible (F12)650i4.9 s
BMWM3 Convertible (E93)4.0 V85.1 s

Although BMW M3 Convertible (E93) 4.0 V8 has more power, BMW 6 Series Convertible (F12) 650i is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between BMW 6 Series Convertible (F12) 650i and BMW M3 Convertible (E93) 4.0 V8: 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
BMW6 Series Convertible (F12)650i
11.5 L/100 km
20.5 mpg US
24.6 mpg UK
BMWM3 Convertible (E93)4.0 V8
12.3 L/100 km
19.1 mpg US
23.0 mpg UK

The biggest fuel consumption difference is between BMW 6 Series Convertible (F12) 650i and BMW M3 Convertible (E93) 4.0 V8: 0.8 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
BMW6 Series Convertible (F12)650i
205 hp/t
153 kW/t
4.9 kg/hp
BMWM3 Convertible (E93)4.0 V8
230 hp/t
171 kW/t
4.4 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
BMW6 Series Convertible (F12)650i
609 km
378 mi
BMWM3 Convertible (E93)4.0 V8
512 km
318 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMW6 Series Convertible (F12)650i
407 hp
304 kW
4.9 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
BMWM3 Convertible (E93)4.0 V8
420 hp
313 kW
5.1 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
BMW6 Series Convertible (F12)650i
Power
407 hp
304 kW
0-100 km/h4.9 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
4,894 mm
192.7 in
Height
1,365 mm
53.7 in
BMWM3 Convertible (E93)4.0 V8
Power
420 hp
313 kW
0-100 km/h5.1 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

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
BMW6 Series Convertible (F12)650i
Power
407 hp
304 kW
0-100 km/h4.9 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
11.5 L/100 km
20.5 mpg US
24.6 mpg UK
BMWM3 Convertible (E93)4.0 V8
Power
420 hp
313 kW
0-100 km/h5.1 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

BMW 6 Series Convertible (F12) 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
BMW6 Series Convertible (F12)650i
11.5 L/100 km
20.5 mpg US
24.6 mpg UK
4.9 s
BMWM3 Convertible (E93)4.0 V8
12.3 L/100 km
19.1 mpg US
23.0 mpg UK
5.1 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
BMW6 Series Convertible (F12)650i
205 hp/t
153 kW/t
4.9 kg/hp
11.5 L/100 km
20.5 mpg US
24.6 mpg UK
BMWM3 Convertible (E93)4.0 V8
230 hp/t
171 kW/t
4.4 kg/hp
12.3 L/100 km
19.1 mpg US
23.0 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMW6 Series Convertible (F12)650iBMWM3 Convertible (E93)4.0 V8
Power
407 hp
304 kW
420 hp
313 kW
Torque
600 Nm
443 lb-ft
400 Nm
295 lb-ft
Acceleration
4.9 s
5.1 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,985 kg
4,376 lb
1,830 kg
4,034 lb
Fuel consumption
11.5 L/100 km
20.5 mpg US
24.6 mpg UK
12.3 L/100 km
19.1 mpg US
23.0 mpg UK
Practicality
Doors/seats
2 doors
4 seats
Trunk
300 L
10.6 cu ft
Length
4,894 mm
192.7 in
Height
1,365 mm
53.7 in
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
Range score
609 km
378 mi
512 km
318 mi
CO2 score
267 g/km
-
Trunk score
300 L
10.6 cu ft
210 L
7.4 cu ft
Power-to-weight score
205 hp/t
153 kW/t
4.9 kg/hp
230 hp/t
171 kW/t
4.4 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
VehicleBMW 6 Series Convertible (F12) 650iBMW M3 Convertible (E93) 4.0 V8
Consumption11.5 L/100 km20.5 mpg US24.6 mpg UK12.3 L/100 km19.1 mpg US23 mpg UK
Cost / 100 km20.13 LC100 km21.53 LC100 km
Cost / 100 mi32.39 LC100 mi34.64 LC100 mi
Annual fuel used1,725 L456 US gal379 UK gal1,845 L487 US gal406 UK gal
Annual fuel cost3,019 LC/year3,229 LC/year

Head-to-head comparisons

BMW 6 Series Convertible (F12) 650i

  • Has 200 Nm more
  • Is 0.2 s quicker from 0-100 km/h
  • Uses 0.8 L/100 km less fuel
  • Has 97 km (60 mi) more estimated range
  • Has 90 L more trunk volume

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Highest torque
  • Lowest combined fuel consumption
  • Best estimated range
  • Largest trunk

Cons

  • Lowest power
  • Heaviest

BMW M3 Convertible (E93) 4.0 V8

  • Has 13 hp more
  • Is 155 kg lighter
  • Has 24 hp/t better power-to-weight

Pros

  • Most powerful
  • Lightest
  • Best power-to-weight ratio

Cons

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

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW 6 Series Convertible (F12) 650i
BMW M3 Convertible (E93) 4.0 V8
Compare selected cars
2 vehicles selected

Popular comparisons

650i
650i
VS
BMW6 Series Convertible (F12)650ivsBMW6 Series Convertible (E64)Facelift 2007650i
4.0 V8
3.2i 24V
VS
BMWM3 Convertible (E93)4.0 V8vsBMWM3 Convertible (E46)3.2i 24V
650i
650i
VS
BMW6 Series Convertible (F12)650ivsBMW6 Series Convertible (E64)650i
4.0 V8
4.0 V8
VS
BMWM3 Convertible (E93)4.0 V8vsBMWM3 Coupe (E92)4.0 V8
650i
650i
VS
BMW6 Series Convertible (F12)650ivsBMW6 Series Coupe (F13)650i
4.0 V8
4.0 V8
VS
BMWM3 Convertible (E93)4.0 V8vsBMWM3 (E90)4.0 V8
650i
650i
VS
BMW6 Series Convertible (F12)650ivsBMW6 Series Gran Coupe (F06)650i
4.0 V8
3.2
VS
BMWM3 Convertible (E93)4.0 V8vsBMWM3 Convertible (E36)3.2
650i
650i
VS
BMW6 Series Convertible (F12)650ivsBMW6 Series (E63)Facelift 2007650i
4.0 V8
CSL 3.2i 24V
VS
BMWM3 Convertible (E93)4.0 V8vsBMWM3 Coupe (E46)CSL 3.2i 24V
650i
650i
VS
BMW6 Series Convertible (F12)650ivsBMW6 Series (E63)650i
4.0 V8
3.0
VS
BMWM3 Convertible (E93)4.0 V8vsBMWM3 (F80)3.0
BMW 6 Series Convertible (F12) 650i vs BMW M3 Convertible (E93) 4.0 V8 - car comparison - FastVsFaster