Car comparison

BMW 6 Series (E63) 650ivsBMW 6 Series Gran Coupe (F06) 640i

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

New comparison

BMW 6 Series (E63)

650i

367 hp4799 ccGasolineRWDManualNaturally aspiratedCoupe2005-2007
VS

BMW 6 Series Gran Coupe (F06)

640i

320 hp2979 ccGasolineRWDAutomaticTurbochargedCoupe2012-2015

Comparison overview

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

Best choices

BMW 6 Series (E63) 650i

  • Quickest 0-100 km/h
    5.4 s
  • Fastest top speed
    265 km/h
    165 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    367 hp
    274 kW
  • Highest torque
    490 Nm
    361 lb-ft
  • Lightest
    1,640 kg
    3,616 lb
  • Best power-to-weight
    224 hp/t
    167 kW/t
    4.5 kg/hp
  • Best overall score
    65/100
  • Best performance score
    71/100

BMW 6 Series Gran Coupe (F06) 640i

  • Lowest combined fuel consumption
    7.9 L/100 km
    29.8 mpg US
    35.8 mpg UK
  • Lowest city consumption
    10.7 L/100 km
    22.0 mpg US
    26.4 mpg UK
  • Lowest highway consumption
    6.2 L/100 km
    37.9 mpg US
    45.6 mpg UK
  • Best estimated range
    886 km
    551 mi
  • Largest trunk
    460 L
  • Best economy score
    86/100
  • Best practicality score
    60/100

Specification comparison

Specification comparison
ModelBMW6 Series (E63)650iBMW6 Series Gran Coupe (F06)640i
Power
367hp274kW
320hp239kW
Torque
490Nm361lb-ft
450Nm332lb-ft
Curb weight
1,640kg3,616lb
1,750kg3,858lb
Gross weight
2,090kg4,608lb
2,360kg5,203lb
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Calculated
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
71.4s99% target: 262 km/h / 163 mph
Calculated
77.8s99% target: 262 km/h / 163 mph
Calculated
0-100 km/h
5.4s
5.4s
0-200 km/h
18.6s
Calculated
19.3s
Calculated
0-60 mph
5.1s
Calculated
5.1s
Calculated
Fuel consumption
11.9L/100 km19.8mpg US23.7mpg UK
7.9L/100 km29.8mpg US35.8mpg UK
Fuel consumption city
17.6L/100 km13.4mpg US16.1mpg UK
10.7L/100 km22mpg US26.4mpg UK
Fuel consumption highway
8.6L/100 km27.4mpg US32.8mpg UK
6.2L/100 km37.9mpg US45.6mpg UK
Quarter mile
13.5s
Calculated
13.5s
Calculated
Power-to-weight
224hp/t167kW/t102hp/1000 lb
Calculated
183hp/t136kW/t83hp/1000 lb
Calculated
Torque-to-weight
299Nm/t200lb-ft/ton
Calculated
257Nm/t172lb-ft/ton
Calculated
Estimated range
588km366mi
Calculated
886km551mi
Calculated
Displacement
4,799cc293cu in
2,979cc182cu in
Length
4,820mm190in
5,007mm197in
Width
1,855mm73in
1,894mm75in
Height
1,373mm54in
1,392mm55in
Wheelbase
2,780mm109in
2,968mm117in
Front track
1,558mm61in
1,600mm63in
Rear track
1,596mm63in
1,665mm66in
Ground clearance-
126mm5in
Trunk volume
450L
460L
Max trunk volume-
1,265L
Doors
2
4
Seats
4
4
Fuel tank
70L
70L
CO2 emissions-
183g/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 (E63) 650iBMW 6 Series Gran Coupe (F06) 640iPowerTorque
  • BMW 6 Series (E63) 650i: Power / Torque
  • BMW 6 Series Gran Coupe (F06) 640i: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMW6 Series (E63)650i6,300 rpm3,400 rpm6,550 rpm
BMW6 Series Gran Coupe (F06)640i5,800-6,000 rpm1,300-4,500 rpm6,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMW6 Series (E63)650iBMW6 Series Gran Coupe (F06)640i
Acceleration checkpoints
0-60 mph
0-97 km/h
5.1 s
5.1 s
0-100 km/h
0-62 mph
5.4 s
5.4 s
0-200 km/h
0-124 mph
18.6 s
19.3 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Likely limited
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Likely limited
Drag race simulation
60 ft
18 m
2.3 s
2.2 s
330 ft
101 m
5.9 s
5.9 s
1/8 mile
201 m
8.9 s
8.8 s
1000 ft
305 m
11.4 s
11.4 s
1/4 mile
402 m
13.5 s
13.5 s
Trap speed
1/4 mile
402 m
173 km/h
108 mph
171 km/h
106 mph

Power comparison

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

Chart data table
VehicleValue
BMW6 Series (E63)650i
367 hp
274 kW
BMW6 Series Gran Coupe (F06)640i
320 hp
239 kW

BMW 6 Series (E63) 650i has 47 hp more than BMW 6 Series Gran Coupe (F06) 640i.

The biggest power difference is between BMW 6 Series Gran Coupe (F06) 640i and BMW 6 Series (E63) 650i: 47 hp (35 kW).

Torque comparison

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

Chart data table
VehicleValue
BMW6 Series (E63)650i
490 Nm
361 lb-ft
BMW6 Series Gran Coupe (F06)640i
450 Nm
332 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
BMW6 Series (E63)650i
1,640 kg
3,616 lb
BMW6 Series Gran Coupe (F06)640i
1,750 kg
3,858 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 (E63)650i
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
BMW6 Series Gran Coupe (F06)640i
Unrestricted
265 km/h165 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 (E63)650i5.4 s
BMW6 Series Gran Coupe (F06)640i5.4 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 (E63)650i
11.9 L/100 km
19.8 mpg US
23.7 mpg UK
BMW6 Series Gran Coupe (F06)640i
7.9 L/100 km
29.8 mpg US
35.8 mpg UK

The biggest fuel consumption difference is between BMW 6 Series Gran Coupe (F06) 640i and BMW 6 Series (E63) 650i: 4.0 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
BMW6 Series (E63)650i
224 hp/t
167 kW/t
4.5 kg/hp
BMW6 Series Gran Coupe (F06)640i
183 hp/t
136 kW/t
5.5 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
BMW6 Series (E63)650i
588 km
366 mi
BMW6 Series Gran Coupe (F06)640i
886 km
551 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMW6 Series (E63)650i
367 hp
274 kW
5.4 s
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
BMW6 Series Gran Coupe (F06)640i
320 hp
239 kW
5.4 s
Unrestricted
265 km/h165 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 (E63)650i
Power
367 hp
274 kW
0-100 km/h5.4 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
4 seats
Trunk
450 L
15.9 cu ft
Length
4,820 mm
189.8 in
Height
1,373 mm
54.1 in
BMW6 Series Gran Coupe (F06)640i
Power
320 hp
239 kW
0-100 km/h5.4 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Doors/seats
4 doors
4 seats
Trunk
460 L
16.2 cu ft
Length
5,007 mm
197.1 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 (E63)650i
Power
367 hp
274 kW
0-100 km/h5.4 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
11.9 L/100 km
19.8 mpg US
23.7 mpg UK
BMW6 Series Gran Coupe (F06)640i
Power
320 hp
239 kW
0-100 km/h5.4 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
7.9 L/100 km
29.8 mpg US
35.8 mpg UK

BMW 6 Series Gran Coupe (F06) 640i 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 (E63)650i
11.9 L/100 km
19.8 mpg US
23.7 mpg UK
5.4 s
BMW6 Series Gran Coupe (F06)640i
7.9 L/100 km
29.8 mpg US
35.8 mpg UK
5.4 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 (E63)650i
224 hp/t
167 kW/t
4.5 kg/hp
11.9 L/100 km
19.8 mpg US
23.7 mpg UK
BMW6 Series Gran Coupe (F06)640i
183 hp/t
136 kW/t
5.5 kg/hp
7.9 L/100 km
29.8 mpg US
35.8 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMW6 Series (E63)650iBMW6 Series Gran Coupe (F06)640i
Power
367 hp
274 kW
320 hp
239 kW
Torque
490 Nm
361 lb-ft
450 Nm
332 lb-ft
Acceleration
5.4 s
5.4 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Lightness
1,640 kg
3,616 lb
1,750 kg
3,858 lb
Fuel consumption
11.9 L/100 km
19.8 mpg US
23.7 mpg UK
7.9 L/100 km
29.8 mpg US
35.8 mpg UK
Practicality
Doors/seats
2 doors
4 seats
Trunk
450 L
15.9 cu ft
Length
4,820 mm
189.8 in
Height
1,373 mm
54.1 in
Doors/seats
4 doors
4 seats
Trunk
460 L
16.2 cu ft
Length
5,007 mm
197.1 in
Height
1,392 mm
54.8 in
Range score
588 km
366 mi
886 km
551 mi
CO2 score
-
183 g/km
Trunk score
450 L
15.9 cu ft
460 L
16.2 cu ft
Power-to-weight score
224 hp/t
167 kW/t
4.5 kg/hp
183 hp/t
136 kW/t
5.5 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 (E63) 650iBMW 6 Series Gran Coupe (F06) 640i
Consumption11.9 L/100 km19.8 mpg US23.7 mpg UK7.9 L/100 km29.8 mpg US35.8 mpg UK
Cost / 100 km20.83 LC100 km13.83 LC100 km
Cost / 100 mi33.51 LC100 mi22.25 LC100 mi
Annual fuel used1,785 L472 US gal393 UK gal1,185 L313 US gal261 UK gal
Annual fuel cost3,124 LC/year2,074 LC/year

Head-to-head comparisons

BMW 6 Series (E63) 650i

  • Has 47 hp more
  • Has 40 Nm more
  • Is 110 kg lighter
  • Has 41 hp/t better power-to-weight

Pros

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

Cons

  • Highest combined fuel consumption
  • Smallest trunk

BMW 6 Series Gran Coupe (F06) 640i

  • Uses 4.0 L/100 km less fuel
  • Has 298 km (185 mi) more estimated range
  • Has 10 L more trunk volume

Pros

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

Cons

  • Lowest power
  • Heaviest

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW 6 Series (E63) 650i
BMW 6 Series Gran Coupe (F06) 640i
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