Car comparison

BMW 6 Series Gran Turismo (G32) 640dvsBMW 6 Series (E24) 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

BMW 6 Series (E24)

635CSi

218 hp3453 ccGasolineRWDManualNaturally aspiratedCoupe1978-1982

Comparison overview

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

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
Best power-to-weight
165 hp/t
123 kW/t
6.0 kg/hp
Lowest combined fuel consumption
6.2 L/100 km
37.9 mpg US
45.6 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

BMW 6 Series (E24) 635CSi

Lightest
1,500 kg
3,307 lb

Specification comparison

Specification comparison
Model	BMW6 Series Gran Turismo (G32)640d	BMW6 Series (E24)635CSi
Power	320hp239kW	218hp163kW
Torque	680Nm502lb-ft	310Nm229lb-ft
Curb weight	1,935kg4,266lb	1,500kg3,307lb
Gross weight	2,615kg5,765lb	1,860kg4,101lb
Top speed	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph Calculated	222 km/h 138 mph
To 99% top speed	73.3s99% target: 257 km/h / 160 mph Calculated	94.9s99% target: 220 km/h / 137 mph Calculated
0-100 km/h	5.3s	7.6s
0-200 km/h	19.3s Calculated	40.5s Calculated
0-60 mph	5.0s Calculated	7.2s Calculated
Fuel consumption	6.2L/100 km37.9mpg US45.6mpg UK	10L/100 km23.5mpg US28.2mpg UK
Fuel consumption city	7.2L/100 km32.7mpg US39.2mpg UK	-
Fuel consumption highway	5.6L/100 km42mpg US50.4mpg UK	-
Quarter mile	13.4s Calculated	15.5s Calculated
Power-to-weight	165hp/t123kW/t75hp/1000 lb Calculated	145hp/t108kW/t66hp/1000 lb Calculated
Torque-to-weight	351Nm/t235lb-ft/ton Calculated	207Nm/t138lb-ft/ton Calculated
Estimated range	1,065km661mi Calculated	700km435mi Calculated
Displacement	2,993cc183cu in	3,453cc211cu in
Length	5,091mm200in	4,755mm187in
Width	1,902mm75in	1,725mm68in
Height	1,540mm61in	1,365mm54in
Wheelbase	3,070mm121in	2,626mm103in
Front track	-	1,422mm56in
Rear track	-	1,487mm59in
Trunk volume	610L	415L
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) 635CSiPowerTorque

Dyno simulation data table
Vehicle	Peak power RPM	Peak torque RPM	Max engine speed
BMW6 Series Gran Turismo (G32)640d	4,400 rpm	1,750-2,250 rpm	4,650 rpm
BMW6 Series (E24)635CSi	5,200 rpm	4,000 rpm	5,450 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
Metric	BMW6 Series Gran Turismo (G32)640d	BMW6 Series (E24)635CSi
	Acceleration checkpoints
0-60 mph 0-97 km/h	5.0 s	7.2 s
0-100 km/h 0-62 mph	5.3 s	7.6 s
0-200 km/h 0-124 mph	19.3 s	40.5 s
Top speed	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph Likely limited	222 km/h 138 mph
	Drag race simulation
60 ft 18 m	2.2 s	2.4 s
330 ft 101 m	5.8 s	6.6 s
1/8 mile 201 m	8.8 s	10.0 s
1000 ft 305 m	11.3 s	13.0 s
1/4 mile 402 m	13.4 s	15.5 s
Trap speed 1/4 mile 402 m	171 km/h 107 mph	146 km/h 90 mph

Power comparison

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

Chart data table
Vehicle	Value
BMW6 Series Gran Turismo (G32)640d	320 hp 239 kW
BMW6 Series (E24)635CSi	218 hp 163 kW

BMW 6 Series Gran Turismo (G32) 640d has 102 hp more than BMW 6 Series (E24) 635CSi.

The biggest power difference is between BMW 6 Series (E24) 635CSi and BMW 6 Series Gran Turismo (G32) 640d: 102 hp (76 kW).

Torque comparison

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

Chart data table
Vehicle	Value
BMW6 Series Gran Turismo (G32)640d	680 Nm 502 lb-ft
BMW6 Series (E24)635CSi	310 Nm 229 lb-ft

Curb weight comparison

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

Chart data table
Vehicle	Value
BMW6 Series Gran Turismo (G32)640d	1,935 kg 4,266 lb
BMW6 Series (E24)635CSi	1,500 kg 3,307 lb

Top speed without limiter comparison

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

Chart data table
Vehicle	Value
BMW6 Series Gran Turismo (G32)640d	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph
BMW6 Series (E24)635CSi	222 km/h 138 mph

0-100 km/h comparison

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

Chart data table
Vehicle	Value
BMW6 Series Gran Turismo (G32)640d	5.3 s
BMW6 Series (E24)635CSi	7.6 s

The biggest 0-100 km/h difference is between BMW 6 Series Gran Turismo (G32) 640d and BMW 6 Series (E24) 635CSi: 2.3 s.

Fuel consumption comparison

Bar comparison chart for Fuel consumption. Lower is better · L/100 km / mpg US / mpg UK

Chart data table
Vehicle	Value
BMW6 Series Gran Turismo (G32)640d	6.2 L/100 km 37.9 mpg US 45.6 mpg UK
BMW6 Series (E24)635CSi	10.0 L/100 km 23.5 mpg US 28.2 mpg UK

The biggest fuel consumption difference is between BMW 6 Series Gran Turismo (G32) 640d and BMW 6 Series (E24) 635CSi: 3.8 L/100 km.

Power-to-weight comparison

Bar comparison chart for Power-to-weight. Higher is better · hp/t / kW/t

Chart data table
Vehicle	Value
BMW6 Series Gran Turismo (G32)640d	165 hp/t 123 kW/t 6.0 kg/hp
BMW6 Series (E24)635CSi	145 hp/t 108 kW/t 6.9 kg/hp

Estimated range comparison

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

Chart data table
Vehicle	Value
BMW6 Series Gran Turismo (G32)640d	1,065 km 661 mi
BMW6 Series (E24)635CSi	700 km 435 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
Vehicle	Power	Acceleration	Top 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)635CSi	218 hp 163 kW	7.6 s	222 km/h 138 mph

Most attractive quadrant

Scatter chart with performance score on the X axis and practicality score on the Y axis.

Vehicle

Performance score

Practicality score

BMW6 Series Gran Turismo (G32)640d

Power	320 hp 239 kW
0-100 km/h	5.3 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)635CSi

Power	218 hp 163 kW
0-100 km/h	7.6 s
Top speed 222 km/h 138 mph

Doors/seats	2 doors 4 seats
Trunk	415 L 14.7 cu ft
Length	4,755 mm 187.2 in
Height	1,365 mm 53.7 in

Performance vs fuel economy

Cars closer to the top-right corner combine stronger performance with better fuel economy scores.

Vehicle

Performance score

Fuel economy score

BMW6 Series Gran Turismo (G32)640d

Power	320 hp 239 kW
0-100 km/h	5.3 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)635CSi

Power	218 hp 163 kW
0-100 km/h	7.6 s
Top speed 222 km/h 138 mph

10.0 L/100 km

23.5 mpg US

28.2 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
Vehicle	Fuel consumption, L/100 km	0-100 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)635CSi	10.0 L/100 km 23.5 mpg US 28.2 mpg UK	7.6 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
Vehicle	Power-to-weight, hp/t	Fuel 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)635CSi	145 hp/t 108 kW/t 6.9 kg/hp	10.0 L/100 km 23.5 mpg US 28.2 mpg UK

Detailed score breakdown

Vehicle

BMW6 Series Gran Turismo (G32)640d

BMW6 Series (E24)635CSi

Power

320 hp

239 kW

218 hp

163 kW

Torque

680 Nm

502 lb-ft

310 Nm

229 lb-ft

Acceleration

5.3 s

7.6 s

Top speed

Unrestricted

260 km/h162 mph

Restricted

250 km/h155 mph

222 km/h

138 mph

Lightness

1,935 kg

4,266 lb

1,500 kg

3,307 lb

Fuel consumption

6.2 L/100 km

37.9 mpg US

45.6 mpg UK

10.0 L/100 km

23.5 mpg US

28.2 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	415 L 14.7 cu ft
Length	4,755 mm 187.2 in
Height	1,365 mm 53.7 in

Range score

1,065 km

661 mi

700 km

435 mi

CO2 score

163 g/km

Trunk score

610 L

21.5 cu ft

415 L

14.7 cu ft

Power-to-weight score

165 hp/t

123 kW/t

6.0 kg/hp

145 hp/t

108 kW/t

6.9 kg/hp

Overall

Fixed score

Fuel cost and annual usage

Estimate running costs from combined consumption, your annual distance, and the fuel price in your local currency.

Average annual distanceDistance unitFuel price in your local currencyPrice unit

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
Vehicle	BMW 6 Series Gran Turismo (G32) 640d	BMW 6 Series (E24) 635CSi
Consumption	6.2 L/100 km37.9 mpg US45.6 mpg UK	10 L/100 km23.5 mpg US28.2 mpg UK
Cost / 100 km	10.85 LC100 km	17.50 LC100 km
Cost / 100 mi	17.46 LC100 mi	28.16 LC100 mi
Annual fuel used	930 L246 US gal205 UK gal	1,500 L396 US gal330 UK gal
Annual fuel cost	1,628 LC/year	2,625 LC/year