Comparison Opel Astra J Sports Tourer (facelift 2012) 1.7 CDTI (100 Hp) Ecotec & BMW 3 Series Sedan (E90, facelift 2009) 330i (272 Hp) & Opel Signum 3.2i V6 24V ECOTEC (211 Hp)
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| Brand: | Opel | BMW | Opel |
| Model: | Astra | 3 Series | Signum |
| Generation: | Astra J Sports Tourer (facelift 2012) | 3 Series Sedan (E90, facelift 2009) | Signum |
| Engine / modification: | 1.7 CDTI (100 Hp) Ecotec | 330i (272 Hp) | 3.2i V6 24V ECOTEC (211 Hp) |
| Production start: | 2012 year | 2009 year | 2003 year |
| Production end: | 2014 year | 2012 year | 2005 year |
| Coupe type: | Combi | Sedan | Hatchback |
| Num. of Doors: | 5 | 4 | 5 |
| Num. of seats: | 5 | 5 | 5 |
| Fuel consumption / economy - urban: | 5.4-5.6 l/100 km | 10.0 l/100 km | 14.3 l/100 km |
| Fuel consumption / economy - extra urban: | 4.0-4.2 l/100 km | 5.9 l/100 km | 7.6 l/100 km |
| Fuel consumption / economy - combined: | 4.5-4.7 l/100 km | 7.4 l/100 km | 10.1 l/100 km |
| Fuel Type: | Diesel | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.27 | 0.33 | |
| Fuel tank volume: | 56 l | 63 l | 60 l |
| Emission standard: | Euro 5 | Euro 5 | |
| CO2 emissions: | 120-124 g/km | 173 g/km | |
| Power: | 100 hp | 272 hp | 211 hp |
| Max power in: | 4000 rpm. | 6700 rpm. | 6200 rpm. |
| Maximum speed: | 182 km/h | 250 km/h | 237 km/h |
| Acceleration from 0 to 100 km/h: | 12.7 sec | 6.1 sec | 7.9 sec |
| Torque: | 260 Nm @ 1750-2500 rpm. | 320 Nm @ 2750-3000 rpm. | 300 Nm @ 4000 rpm. |
| Model Engine: | N53B30 | ||
| Engine position: | Front, transverse | Front, longitudinal | Front, transverse |
| Engine displacement: | 1686 cm3 | 2996 cm3 | 3175 cm3 |
| Engine oil capacity: | 6.5 l | ||
| Coolant: | 8.2 l | ||
| Fuel System: | Diesel Commonrail | Direct injection | Multi-point injection |
| Aspiration / Turbine: | Turbo / Intercooler (Turbocharging / Intercooler) | ||
| Position of cylinders: | Inline | Inline | V engine |
| Valvetrain: | DOHC | ||
| Number of cylinders: | 4 | 6 | 6 |
| Number of valves per cylinder: | 4 | 4 | 4 |
| Compression ratio: | 12 | 10 | |
| Piston Stroke: | 86 mm | 88 mm | 88 mm |
| Cylinder Bore: | 79 mm | 85 mm | 87.5 mm |
| Wheel Drive: | Front wheel drive | Rear wheel drive | Front wheel drive |
| Number of Gears (automatic transmission): | 5 | ||
| Number of Gears (manual transmission): | 6 | 6 | 5 |
| Length: | 4698 mm | 4531 mm | 4636 mm |
| Width: | 1814 mm | 1817 mm | 1798 mm |
| Width with mirrors folded: | 1831 mm | ||
| Width including mirrors: | 2013 mm | 1989 mm | |
| Height: | 1535 mm | 1421 mm | 1466 mm |
| Wheelbase: | 2685 mm | 2760 mm | 2830 mm |
| Front track: | 1541 mm | 1500 mm | 1524 mm |
| Rear (Back) track: | 1551 mm | 1529 mm | 1512 mm |
| Ride height(clearance): | 165 mm | 144 mm | |
| Minimum volume of Luggage (trunk): | 500 l | 460 l | 365 l |
| Maximum amount of Luggage (trunk): | 1550 l | 1410 l | |
| Front suspension: | Independent, spring | Coil spring | |
| Rear suspension: | Multi-link independent | Helical spring | |
| Max weight: | 2000 kg | 2125 kg | |
| Front brakes: | Ventilated discs | Ventilated discs | Ventilated discs |
| Rear brakes: | Ventilated discs | Ventilated discs | |
| Kerb Weight: | 1475 kg | 1610 kg | |
| ABS: | yes | yes | yes |
| Steering type: | Steering rack and pinion | Steering rack and pinion | Steering rack and pinion |
| Power steering: | Electric Steering | Electric Steering | Hydraulic Steering |
| Max. roof load: | 75 kg | ||
| Minimum turning circle (turning diameter): | 11.4 m | 11.0 m | |
| Permitted trailer load with brakes (12%): | 1700 kg | ||
| Permitted trailer load without brakes: | 750 kg | ||
| Permitted towbar download: | 75 kg | ||
| Tire size: | 225/45 R17 91W | 215/55 R16 | |
| Wheel rims size: | 8J x 17 | 6.5J x 16 |