Comparison BMW 7 Series (E38, facelift 1998) 728i (193 Hp) Steptronic & Opel Astra J (facelift 2012) 1.6 (170 Hp) Turbo Ecotec start/stop
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| Brand: | BMW | Opel |
| Model: | 7 Series | Astra |
| Generation: | 7 Series (E38, facelift 1998) | Astra J (facelift 2012) |
| Engine / modification: | 728i (193 Hp) Steptronic | 1.6 (170 Hp) Turbo Ecotec start/stop |
| Production start: | 1998 year | 2012 year |
| Production end: | 2001 year | 2015 year |
| Coupe type: | Sedan | Hatchback |
| Num. of Doors: | 4 | 5 |
| Num. of seats: | 5 | 5 |
| Fuel consumption / economy - urban: | 16.5 l/100 km | 7.8 l/100 km |
| Fuel consumption / economy - extra urban: | 8.0 l/100 km | 4.9 l/100 km |
| Fuel consumption / economy - combined: | 11.1 l/100 km | 5.9 l/100 km |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.30 | |
| Fuel tank volume: | 85 l | 56 l |
| Emission standard: | Euro 5 | |
| CO2 emissions: | 139 g/km | |
| Power: | 193 hp | 170 hp |
| Max power in: | 5300 rpm. | 6000 rpm. |
| Maximum speed: | 226 km/h | 220 km/h |
| Acceleration from 0 to 100 km/h: | 9.6 sec | 8.7 sec |
| Torque: | 280 Nm @ 3500 rpm. | 260 Nm @ 1650-3200 rpm. |
| Model Engine: | M52B28 | A16XHT |
| Engine position: | Front, longitudinal | Front, transverse |
| Engine displacement: | 2793 cm3 | 1598 cm3 |
| Engine oil capacity: | 5.75 l | 5.5 l |
| Coolant: | 11 l | |
| Fuel System: | Multi-point injection | Direct injection |
| Aspiration / Turbine: | Turbocharging | |
| Position of cylinders: | Inline | Inline |
| Valvetrain: | DOHC | |
| Number of cylinders: | 6 | 4 |
| Number of valves per cylinder: | 4 | 4 |
| Compression ratio: | 10.2 | |
| Piston Stroke: | 84 mm | 81.5 mm |
| Cylinder Bore: | 84 mm | 79 mm |
| Wheel Drive: | Rear wheel drive | Front wheel drive |
| Number of Gears (automatic transmission): | 5 Steptronic | |
| Number of Gears (manual transmission): | 6 | |
| Length: | 4984 mm | 4419 mm |
| Width: | 1862 mm | 1814 mm |
| Width with mirrors folded: | 1831 mm | |
| Width including mirrors: | 2013 mm | |
| Height: | 1435 mm | 1510 mm |
| Wheelbase: | 2930 mm | 2685 mm |
| Front track: | 1552 mm | 1541 mm |
| Rear (Back) track: | 1568 mm | 1551 mm |
| Minimum volume of Luggage (trunk): | 500 l | 370 l |
| Maximum amount of Luggage (trunk): | 1235 l | |
| Front suspension: | Wishbone | |
| Rear suspension: | Inclined Lever | |
| Max weight: | 2285 kg | |
| Front brakes: | Ventilated discs | |
| Rear brakes: | Disc | |
| Kerb Weight: | 1740 kg | |
| ABS: | yes | yes |
| Steering type: | Steering rack and pinion | Steering rack and pinion |
| Power steering: | Hydraulic Steering | Electric Steering |
| Minimum turning circle (turning diameter): | 11.6 m | 11.4 m |
| Tire size: | 215/65 R16 | 205/60 R16 |
| Wheel rims size: | R16 | R16 |