Comparison Opel Signum (facelift 2005) 2.8i V6 24V Turbo (250 Hp) & Opel Astra F 1.4 Si (82 Hp)
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| Brand: | Opel | Opel |
| Model: | Signum | Astra |
| Generation: | Signum (facelift 2005) | Astra F |
| Engine / modification: | 2.8i V6 24V Turbo (250 Hp) | 1.4 Si (82 Hp) |
| Production start: | 2006 year | 1991 year |
| Production end: | 2008 year | 1994 year |
| Coupe type: | Hatchback | Hatchback |
| Num. of Doors: | 5 | 3/5 |
| Num. of seats: | 5 | 5 |
| Fuel consumption / economy - urban: | 15.7 l/100 km | 9.1 l/100 km |
| Fuel consumption / economy - extra urban: | 7.6 l/100 km | 5.3 l/100 km |
| Fuel consumption / economy - combined: | 6.8 l/100 km | |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.32 | 0.32 |
| Fuel tank volume: | 60 l | 52 l |
| Emission standard: | Euro 1 | |
| Power: | 250 hp | 82 hp |
| Max power in: | 5500 rpm. | 5800 rpm. |
| Maximum speed: | 250 km/h | 175 km/h |
| Acceleration from 0 to 100 km/h: | 7.2 sec | 13 sec |
| Torque: | 350 Nm | 114 Nm @ 3400 rpm. |
| Model Engine: | C14SE | |
| Engine position: | Front, transverse | Front, transverse |
| Engine displacement: | 2792 cm3 | 1389 cm3 |
| Fuel System: | Multi-point injection | Multi-point injection |
| Aspiration / Turbine: | Turbocharging | |
| Position of cylinders: | V engine | Inline |
| Valvetrain: | SOHC | |
| Number of cylinders: | 6 | 4 |
| Number of valves per cylinder: | 4 | 2 |
| Compression ratio: | 9.5 | 9.8 |
| Piston Stroke: | 74.8 mm | 73.4 mm |
| Cylinder Bore: | 89 mm | 77.6 mm |
| Wheel Drive: | Front wheel drive | Front wheel drive |
| Number of Gears (automatic transmission): | 6 | 4 |
| Number of Gears (manual transmission): | 6 | 5 |
| Length: | 4651 mm | 4051 mm |
| Width: | 1798 mm | 1688 mm |
| Width including mirrors: | 1795 mm | |
| Height: | 1466 mm | 1410 mm |
| Wheelbase: | 2830 mm | 2517 mm |
| Front track: | 1536 mm | 1430 mm |
| Rear (Back) track: | 1525 mm | 1429 mm |
| Ride height(clearance): | 135 mm | |
| Minimum volume of Luggage (trunk): | 365 l | 360 l |
| Maximum amount of Luggage (trunk): | 1410 l | 1200 l |
| Front suspension: | Independent, spring | Wishbone |
| Rear suspension: | Independent, spring | Suspension with traction connecting levers |
| Max weight: | 2175 kg | 1455 kg |
| Front brakes: | Disc | Disc |
| Rear brakes: | Disc | Drum |
| Kerb Weight: | 1580 kg | 940/960 kg |
| ABS: | yes | |
| Steering type: | Steering rack and pinion | |
| Power steering: | Hydraulic Steering | |
| Minimum turning circle (turning diameter): | 10.5 m | |
| Tire size: | 235/40 R18 | 175/70 R13 82T; 175/65 R14 81S |
| Wheel rims size: | R18 | 5.5J x 13 ET49; 5.5J x 14 ET49 |