Car comparison

BMW 6 Series Gran Turismo (G32) 640dvsBMW 6 Series (E24) · Facelift 1987 M 635CSi

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

New comparison

BMW 6 Series Gran Turismo (G32)

640d

320 hp2993 ccDieselAWDAutomaticTurbocharged2017-2020
VS

BMW 6 Series (E24) · Facelift 1987

M 635CSi

260 hp3453 ccGasolineRWDManualNaturally aspiratedCoupe1987-1989

Comparison overview

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

Best choices

BMW 6 Series Gran Turismo (G32) 640d

  • 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
    320 hp
    239 kW
  • Highest torque
    680 Nm
    502 lb-ft
  • Lowest combined fuel consumption
    6.2 L/100 km
    37.9 mpg US
    45.6 mpg UK
  • Lowest city consumption
    7.2 L/100 km
    32.7 mpg US
    39.2 mpg UK
  • Lowest highway consumption
    5.6 L/100 km
    42.0 mpg US
    50.4 mpg UK
  • Best estimated range
    1,065 km
    661 mi
  • Largest trunk
    610 L
  • Best overall score
    74/100
  • Best performance score
    72/100
  • Best economy score
    90/100
  • Best practicality score
    79/100

Specification comparison

Specification comparison
ModelBMW6 Series Gran Turismo (G32)640dBMW6 Series (E24)Facelift 1987M 635CSi
Power
320hp239kW
260hp194kW
Torque
680Nm502lb-ft
330Nm243lb-ft
Curb weight
1,935kg4,266lb
1,515kg3,340lb
Gross weight
2,615kg5,765lb
1,865kg4,112lb
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
242 km/h
150 mph
To 99% top speed
73.3s99% target: 257 km/h / 160 mph
Calculated
93.4s99% target: 240 km/h / 149 mph
Calculated
0-100 km/h
5.3s
6.9s
0-200 km/h
19.3s
Calculated
29.0s
Calculated
0-60 mph
5.0s
Calculated
6.5s
Calculated
Fuel consumption
6.2L/100 km37.9mpg US45.6mpg UK
11.9L/100 km19.8mpg US23.7mpg UK
Fuel consumption city
7.2L/100 km32.7mpg US39.2mpg UK
17.6L/100 km13.4mpg US16.1mpg UK
Fuel consumption highway
5.6L/100 km42mpg US50.4mpg UK
8.1L/100 km29mpg US34.9mpg UK
Quarter mile
13.4s
Calculated
14.9s
Calculated
Power-to-weight
165hp/t123kW/t75hp/1000 lb
Calculated
172hp/t128kW/t78hp/1000 lb
Calculated
Torque-to-weight
351Nm/t235lb-ft/ton
Calculated
218Nm/t146lb-ft/ton
Calculated
Estimated range
1,065km661mi
Calculated
588km366mi
Calculated
Displacement
2,993cc183cu in
3,453cc211cu in
Length
5,091mm200in
4,815mm190in
Width
1,902mm75in
1,725mm68in
Height
1,540mm61in
1,355mm53in
Wheelbase
3,070mm121in
2,625mm103in
Front track-
1,430mm56in
Rear track-
1,464mm58in
Trunk volume
610L
335L
Max trunk volume
1,800L
-
Doors
5
2
Seats
5
4
Fuel tank
66L
70L
CO2 emissions
163g/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 Gran Turismo (G32) 640dBMW 6 Series (E24) Facelift 1987 M 635CSiPowerTorque
  • BMW 6 Series Gran Turismo (G32) 640d: Power / Torque
  • BMW 6 Series (E24) Facelift 1987 M 635CSi: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMW6 Series Gran Turismo (G32)640d4,400 rpm1,750-2,250 rpm4,650 rpm
BMW6 Series (E24)Facelift 1987M 635CSi6,500 rpm4,500 rpm6,750 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMW6 Series Gran Turismo (G32)640dBMW6 Series (E24)Facelift 1987M 635CSi
Acceleration checkpoints
0-60 mph
0-97 km/h
5.0 s
6.5 s
0-100 km/h
0-62 mph
5.3 s
6.9 s
0-200 km/h
0-124 mph
19.3 s
29.0 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
242 km/h
150 mph
Drag race simulation
60 ft
18 m
2.2 s
2.4 s
330 ft
101 m
5.8 s
6.4 s
1/8 mile
201 m
8.8 s
9.7 s
1000 ft
305 m
11.3 s
12.5 s
1/4 mile
402 m
13.4 s
14.9 s
Trap speed
1/4 mile
402 m
171 km/h
107 mph
154 km/h
96 mph

Power comparison

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

Chart data table
VehicleValue
BMW6 Series Gran Turismo (G32)640d
320 hp
239 kW
BMW6 Series (E24)Facelift 1987M 635CSi
260 hp
194 kW

BMW 6 Series Gran Turismo (G32) 640d has 60 hp more than BMW 6 Series (E24) Facelift 1987 M 635CSi.

The biggest power difference is between BMW 6 Series (E24) Facelift 1987 M 635CSi and BMW 6 Series Gran Turismo (G32) 640d: 60 hp (45 kW).

Torque comparison

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

Chart data table
VehicleValue
BMW6 Series Gran Turismo (G32)640d
680 Nm
502 lb-ft
BMW6 Series (E24)Facelift 1987M 635CSi
330 Nm
243 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
BMW6 Series Gran Turismo (G32)640d
1,935 kg
4,266 lb
BMW6 Series (E24)Facelift 1987M 635CSi
1,515 kg
3,340 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 Gran Turismo (G32)640d
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
BMW6 Series (E24)Facelift 1987M 635CSi
242 km/h
150 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
BMW6 Series Gran Turismo (G32)640d5.3 s
BMW6 Series (E24)Facelift 1987M 635CSi6.9 s

The biggest 0-100 km/h difference is between BMW 6 Series Gran Turismo (G32) 640d and BMW 6 Series (E24) Facelift 1987 M 635CSi: 1.6 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 Gran Turismo (G32)640d
6.2 L/100 km
37.9 mpg US
45.6 mpg UK
BMW6 Series (E24)Facelift 1987M 635CSi
11.9 L/100 km
19.8 mpg US
23.7 mpg UK

The biggest fuel consumption difference is between BMW 6 Series Gran Turismo (G32) 640d and BMW 6 Series (E24) Facelift 1987 M 635CSi: 5.7 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
BMW6 Series Gran Turismo (G32)640d
165 hp/t
123 kW/t
6.0 kg/hp
BMW6 Series (E24)Facelift 1987M 635CSi
172 hp/t
128 kW/t
5.8 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
BMW6 Series Gran Turismo (G32)640d
1,065 km
661 mi
BMW6 Series (E24)Facelift 1987M 635CSi
588 km
366 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMW6 Series Gran Turismo (G32)640d
320 hp
239 kW
5.3 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
BMW6 Series (E24)Facelift 1987M 635CSi
260 hp
194 kW
6.9 s
242 km/h
150 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 Gran Turismo (G32)640d
Power
320 hp
239 kW
0-100 km/h5.3 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
5 doors
5 seats
Trunk
610 L
21.5 cu ft
Length
5,091 mm
200.4 in
Height
1,540 mm
60.6 in
BMW6 Series (E24)Facelift 1987M 635CSi
Power
260 hp
194 kW
0-100 km/h6.9 s
Top speed
242 km/h
150 mph
Doors/seats
2 doors
4 seats
Trunk
335 L
11.8 cu ft
Length
4,815 mm
189.6 in
Height
1,355 mm
53.3 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 Gran Turismo (G32)640d
Power
320 hp
239 kW
0-100 km/h5.3 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
6.2 L/100 km
37.9 mpg US
45.6 mpg UK
BMW6 Series (E24)Facelift 1987M 635CSi
Power
260 hp
194 kW
0-100 km/h6.9 s
Top speed
242 km/h
150 mph
11.9 L/100 km
19.8 mpg US
23.7 mpg UK

BMW 6 Series Gran Turismo (G32) 640d 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 Gran Turismo (G32)640d
6.2 L/100 km
37.9 mpg US
45.6 mpg UK
5.3 s
BMW6 Series (E24)Facelift 1987M 635CSi
11.9 L/100 km
19.8 mpg US
23.7 mpg UK
6.9 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
BMW6 Series Gran Turismo (G32)640d
165 hp/t
123 kW/t
6.0 kg/hp
6.2 L/100 km
37.9 mpg US
45.6 mpg UK
BMW6 Series (E24)Facelift 1987M 635CSi
172 hp/t
128 kW/t
5.8 kg/hp
11.9 L/100 km
19.8 mpg US
23.7 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMW6 Series Gran Turismo (G32)640dBMW6 Series (E24)Facelift 1987M 635CSi
Power
320 hp
239 kW
260 hp
194 kW
Torque
680 Nm
502 lb-ft
330 Nm
243 lb-ft
Acceleration
5.3 s
6.9 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
242 km/h
150 mph
Lightness
1,935 kg
4,266 lb
1,515 kg
3,340 lb
Fuel consumption
6.2 L/100 km
37.9 mpg US
45.6 mpg UK
11.9 L/100 km
19.8 mpg US
23.7 mpg UK
Practicality
Doors/seats
5 doors
5 seats
Trunk
610 L
21.5 cu ft
Length
5,091 mm
200.4 in
Height
1,540 mm
60.6 in
Doors/seats
2 doors
4 seats
Trunk
335 L
11.8 cu ft
Length
4,815 mm
189.6 in
Height
1,355 mm
53.3 in
Range score
1,065 km
661 mi
588 km
366 mi
CO2 score
163 g/km
-
Trunk score
610 L
21.5 cu ft
335 L
11.8 cu ft
Power-to-weight score
165 hp/t
123 kW/t
6.0 kg/hp
172 hp/t
128 kW/t
5.8 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 Gran Turismo (G32) 640dBMW 6 Series (E24) Facelift 1987 M 635CSi
Consumption6.2 L/100 km37.9 mpg US45.6 mpg UK11.9 L/100 km19.8 mpg US23.7 mpg UK
Cost / 100 km10.85 LC100 km20.83 LC100 km
Cost / 100 mi17.46 LC100 mi33.51 LC100 mi
Annual fuel used930 L246 US gal205 UK gal1,785 L472 US gal393 UK gal
Annual fuel cost1,628 LC/year3,124 LC/year

Head-to-head comparisons

BMW 6 Series Gran Turismo (G32) 640d

  • Has 60 hp more
  • Has 350 Nm more
  • Is 1.6 s quicker from 0-100 km/h
  • Has 18 km/h (11 mph) higher top speed
  • Uses 5.7 L/100 km less fuel
  • Has 476 km (296 mi) more estimated range
  • Has 275 L more trunk volume

Pros

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

Cons

  • Heaviest

BMW 6 Series (E24) Facelift 1987 M 635CSi

  • Is 420 kg lighter
  • Has 6 hp/t better power-to-weight

Pros

  • Lightest
  • Best power-to-weight ratio

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Highest combined fuel consumption
  • Lowest top speed
  • Smallest trunk

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW 6 Series Gran Turismo (G32) 640d
BMW 6 Series (E24) M 635CSi
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BMW 6 Series Gran Turismo (G32) 640d vs BMW 6 Series (E24) · Facelift 1987 M 635CSi - car comparison - FastVsFaster