Comparison Buick Regal IV Sedan 3.8 V6 (243 Hp) Automatic & Aston Martin DBS V12 5.9 V12 (517 Hp) Automatic
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| Brand: | Buick | Aston Martin |
| Model: | Regal | DBS |
| Generation: | Regal IV Sedan | DBS V12 |
| Engine / modification: | 3.8 V6 (243 Hp) Automatic | 5.9 V12 (517 Hp) Automatic |
| Production start: | 1997 year | 2007 year |
| Production end: | 2004 year | 2012 year |
| Coupe type: | Sedan | Coupe |
| Num. of Doors: | 4 | 2 |
| Num. of seats: | 5 | 2 |
| Fuel consumption / economy - urban: | 13.1 l/100 km | 24.3 l/100 km |
| Fuel consumption / economy - extra urban: | 8.7 l/100 km | 11.7 l/100 km |
| Fuel consumption / economy - combined: | 10.2 l/100 km | 16.4 l/100 km |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.32 | |
| Fuel tank volume: | 64 l | 78 l |
| Power: | 243 hp | 517 hp |
| Max power in: | 5200 rpm. | 6500 rpm. |
| Maximum speed: | 220 km/h | 307 km/h |
| Acceleration from 0 to 100 km/h: | 6.8 sec | 4.3 sec |
| Torque: | 380 Nm @ 3600 rpm. | 570 Nm/5750 rpm. |
| Model Engine: | L67 | |
| Engine position: | Front, transverse | Front, longitudinal |
| Engine displacement: | 3791 cm3 | 5935 cm3 |
| Engine oil capacity: | 4.3 l | |
| Coolant: | 11.5 l | |
| Fuel System: | Multi-point injection | |
| Aspiration / Turbine: | Mechanical supercharging (Compressor) | |
| Position of cylinders: | V engine | V engine |
| Valvetrain: | - | DOHC |
| Number of cylinders: | 6 | 12 |
| Number of valves per cylinder: | 2 | 4 |
| Compression ratio: | 8.5 | 10.9 |
| Piston Stroke: | 86.36 mm | |
| Cylinder Bore: | 96.52 mm | |
| Wheel Drive: | Front wheel drive | Rear wheel drive |
| Number of Gears (automatic transmission): | 4 Hydramatic | 6 |
| Length: | 4983 mm | 4721 mm |
| Width: | 1847 mm | 1905 mm |
| Width including mirrors: | 2060 mm | |
| Height: | 1438 mm | 1280 mm |
| Wheelbase: | 2769 mm | 2740 mm |
| Front track: | 1575 mm | |
| Rear (Back) track: | 1557 mm | |
| Minimum volume of Luggage (trunk): | 473 l | |
| Front suspension: | Independent type McPherson | Independent, spring |
| Rear suspension: | Independent, spring | Independent, spring |
| Max weight: | 2085 kg | |
| Front brakes: | Ventilated discs | Ventilated discs |
| Rear brakes: | Disc | Ventilated discs |
| Kerb Weight: | 1645 kg | 1695 kg |
| ABS: | yes | yes |
| Steering type: | Steering rack and pinion | Steering rack and pinion |
| Power steering: | Hydraulic Steering | Electric Steering |
| Tire size: | 225/60 R16 | 245/35R20; 295/30R20 |
| Wheel rims size: | 6.5J x 16 |