Comparison BMW 3 Series Convertible (E30) 325i (170 Hp) & Opel Signum (facelift 2005) 2.2i 16V ECOTEC (155 Hp)
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| Brand: | BMW | Opel |
| Model: | 3 Series | Signum |
| Generation: | 3 Series Convertible (E30) | Signum (facelift 2005) |
| Engine / modification: | 325i (170 Hp) | 2.2i 16V ECOTEC (155 Hp) |
| Production start: | 1987 year | 2005 year |
| Production end: | 1993 year | 2008 year |
| Coupe type: | Cabriolet | Hatchback |
| Num. of Doors: | 2 | 5 |
| Num. of seats: | 4 | 5 |
| Fuel consumption / economy - urban: | 12.9 l/100 km | 10.6 l/100 km |
| Fuel consumption / economy - extra urban: | 7.2 l/100 km | 6.6 l/100 km |
| Fuel consumption / economy - combined: | 9.0 l/100 km | 8.1 l/100 km |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.32 | |
| Fuel tank volume: | 62 l | 60 l |
| Power: | 170 hp | 155 hp |
| Max power in: | 5800 rpm. | 5600 rpm. |
| Maximum speed: | 216 km/h | 211 km/h |
| Acceleration from 0 to 100 km/h: | 8.7 sec | 9.8 sec |
| Torque: | 222 Nm @ 4300 rpm. | 220 Nm @ 3800 rpm. |
| Model Engine: | M20B25 | Z22YH |
| Engine position: | Front, longitudinal | Front, transverse |
| Engine displacement: | 2494 cm3 | 2198 cm3 |
| Engine oil capacity: | 4.8 l | 4.8 l |
| Fuel System: | Multi-point injection | Direct injection |
| Position of cylinders: | Inline | Inline |
| Valvetrain: | DOHC | |
| Number of cylinders: | 6 | 4 |
| Number of valves per cylinder: | 2 | 4 |
| Compression ratio: | 8.8 | 12 |
| Piston Stroke: | 75 mm | 94.6 mm |
| Cylinder Bore: | 84 mm | 86 mm |
| Wheel Drive: | Rear wheel drive | Front wheel drive |
| Number of Gears (manual transmission): | 5 | 5 |
| Length: | 4325 mm | 4651 mm |
| Width: | 1645 mm | 1798 mm |
| Height: | 1370 mm | 1460 mm |
| Wheelbase: | 2570 mm | 2830 mm |
| Front track: | 1405 mm | 1535 mm |
| Rear (Back) track: | 1415 mm | 1525 mm |
| Minimum volume of Luggage (trunk): | 312 l | 365 l |
| Maximum amount of Luggage (trunk): | 1410 l | |
| Front suspension: | Coil spring | Coil spring |
| Rear suspension: | Helical spring | Helical spring |
| Max weight: | 1710 kg | 2050 kg |
| Front brakes: | Disc | Ventilated discs |
| Rear brakes: | Disc | Disc |
| Kerb Weight: | 1310 kg | 1535 kg |
| ABS: | yes | yes |
| Steering type: | Steering rack and pinion | |
| Power steering: | Hydraulic Steering | Hydraulic Steering |
| Tire size: | 195/65 R15 | 215/55 R16 |
| Wheel rims size: | R15 | 6.5J x 16 |