Comparison of BMW 7 Series (E23) 728 and Opel Commodore C Caravan 2.5 S

Attribute	BMW 7 Series (E23) 728 ×	Opel Commodore C Caravan 2.5 S ×
General
Make	BMW	Opel
Model	7 Series	Commodore
Generation	7 Series (E23)	Commodore C Caravan
Modification	728	2.5 S
Website	https://www.bmw.com	https://www.opel.com/
Number of doors	4	5
Number of seats	5	5
Body type	Sedan	Station wagon (estate)
Transmission	manual	manual
Number of gears	5	4
Production from (year)	1977	1980
Production to (year)	1979	1982
Performance
Top speed (km/h)	192	177
Acceleration 0-100 km/h (s)	10.1	12.5
Combined consumption (l/100km)	-	9.2
Drive
Drive	Rear wheel drive	Front wheel drive
Position of engine	Front,ongitudinal	-
Fuel	Petrol (Gasoline)	Petrol (Gasoline)
Max. power (hp)	170	115
Max. torque (Nm)	233	179
Fuel Engine
Number of cylinders	6	6
Cylinders arrangement	Inline	Inline
Valves per cylinder	2	-
Engine displacement (cm³)	2,788	2,490
Compression ratio	9	9.2
Max. power @ rpm (rpm)	5,800	5,200
Max. torque @ rpm (rpm)	4,000	3,800
Cylinder bore (mm)	86	87
Piston stroke (mm)	80	69.8
Fuel system	Multi-point injection	Carburettor
Valve control	Sohc	Sohc
Fuel tank (l)	90	70
Chassis
Front wheel suspension	Independent, Spring McPherson, with stabilizer	-
Rear wheel suspension	Independent, spring	-
Front brakes	Ventilated discs	-
Rear brakes	Disc	-
Tires size	195/70 R14	175/88 R14
Turning radius (m)	-	10.8
Dimensions
Length (mm)	4,860	4,732
Width (mm)	1,800	1,722
Height (mm)	1,430	1,470
Wheelbase (mm)	2,795	2,668
Kerb weight (kg)	1,530	1,287
Gross weight (kg)	2,000	1,910
Max. roof load (kg)	-	100
Front track (mm)	1,502	1,447
Rear track (mm)	1,524	1,438
Ride height (mm)	132	-
Drag coefficient (Cd)	-	0.46