Comparison Opel Astra G 1.8 16V (125 Hp) Automatic & BMW 7 Series (E23) 728 (170 Hp)
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| Brand: | Opel | BMW |
| Model: | Astra | 7 Series |
| Generation: | Astra G | 7 Series (E23) |
| Engine / modification: | 1.8 16V (125 Hp) Automatic | 728 (170 Hp) |
| Production start: | 2000 year | 1977 year |
| Production end: | 2002 year | 1979 year |
| Coupe type: | Hatchback | Sedan |
| Num. of Doors: | 3/5 | 4 |
| Num. of seats: | 5 | 5 |
| Fuel consumption / economy - urban: | 12 l/100 km | |
| Fuel consumption / economy - extra urban: | 6.6 l/100 km | |
| Fuel consumption / economy - combined: | 8.6 l/100 km | |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.28 | |
| Fuel tank volume: | 52 l | 90 l |
| Emission standard: | Euro 3 | |
| Power: | 125 hp | 170 hp |
| Max power in: | 5600 rpm. | 5800 rpm. |
| Maximum speed: | 198 km/h | 192 km/h |
| Acceleration from 0 to 100 km/h: | 11 sec | 10.1 sec |
| Torque: | 170 Nm @ 3400 rpm. | 233 Nm @ 4000 rpm. |
| Model Engine: | Z18XE | M30B28 |
| Engine position: | Front, transverse | Front, longitudinal |
| Engine displacement: | 1796 cm3 | 2788 cm3 |
| Engine oil capacity: | 4.25 l | 5.8 l |
| Coolant: | 6.3 l | |
| Fuel System: | Multi-point injection | Multi-point injection |
| Position of cylinders: | Inline | Inline |
| Valvetrain: | DOHC | SOHC |
| Number of cylinders: | 4 | 6 |
| Number of valves per cylinder: | 4 | 2 |
| Compression ratio: | 10.5 | 9 |
| Piston Stroke: | 88.2 mm | 80 mm |
| Cylinder Bore: | 80.5 mm | 86 mm |
| Wheel Drive: | Front wheel drive | |
| Number of Gears (automatic transmission): | 4 | |
| Number of Gears (manual transmission): | 5 | |
| Length: | 4110 mm | 4860 mm |
| Width: | 1709 mm | 1800 mm |
| Width including mirrors: | 1989 mm | |
| Height: | 1425 mm | 1430 mm |
| Wheelbase: | 2606 mm | 2795 mm |
| Front track: | 1464 mm | 1502 mm |
| Rear (Back) track: | 1452 mm | 1524 mm |
| Ride height(clearance): | 130 mm | 132 mm |
| Front overhang: | 791 mm | |
| Rear overhang: | 713 mm | |
| Minimum volume of Luggage (trunk): | 370 l | |
| Maximum amount of Luggage (trunk): | 1180 l | |
| Front suspension: | Independent, Spring McPherson, with stabilizer | Independent, Spring McPherson, with stabilizer |
| Rear suspension: | Semi-independent, spring | Independent, spring |
| Max weight: | 1685 kg | 2000 kg |
| Front brakes: | Ventilated discs | Ventilated discs |
| Rear brakes: | Disc | Disc |
| Kerb Weight: | 1175 kg | 1530 kg |
| ABS: | yes | |
| Steering type: | Steering rack and pinion | |
| Power steering: | Hydraulic Steering | |
| Max. roof load: | 100 kg | |
| Minimum turning circle (turning diameter): | 10.8 m | |
| Permitted towbar download: | 75 kg | |
| Tire size: | 195/60 R15 | 195/70 R14 |
| Wheel rims size: | 6.5J x 15 | 6.0J x 14 |