Comparison Rolls-Royce Ghost II 6.75 V12 (571 Hp) AWD Automatic & Buick Regal I Coupe (facelift 1976) S/R 3.8 V6 (106 Hp) Automatic & Buick Riviera 3.8 i V6 Supercharged (243 Hp)
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| Brand: | Rolls-Royce | Buick | Buick |
| Model: | Ghost | Regal | Riviera |
| Generation: | Ghost II | Regal I Coupe (facelift 1976) | Riviera |
| Engine / modification: | 6.75 V12 (571 Hp) AWD Automatic | S/R 3.8 V6 (106 Hp) Automatic | 3.8 i V6 Supercharged (243 Hp) |
| Production start: | 2020 year | 1973 year | 1998 year |
| Production end: | 1977 year | 2000 year | |
| Coupe type: | Sedan | Coupe | Coupe |
| Num. of Doors: | 4 | 2 | 2 |
| Num. of seats: | 5 | 5 | 5 |
| Fuel consumption / economy - urban: | 13.1 l/100 km | ||
| Fuel consumption / economy - extra urban: | 8.7 l/100 km | ||
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.48 | ||
| Fuel tank volume: | 83 l | 70 l | |
| Power: | 571 hp | 106 hp | 243 hp |
| Max power in: | 5000 rpm. | 3400 rpm. | 5200 rpm. |
| Maximum speed: | 250 , Electronically limited km/h | 175 km/h | |
| Acceleration from 0 to 100 km/h: | 4.8 sec | 7.2 sec | |
| Torque: | 850 Nm @ 1600 rpm. | 251 Nm @ 2000 rpm. | 380 Nm/3600 rpm. |
| Engine position: | Front, longitudinal | Front, longitudinal | Front, transverse |
| Engine displacement: | 3791 cm3 | 3791 cm3 | |
| Fuel System: | Direct injection | Carburettor | Multi-point injection |
| Aspiration / Turbine: | Twin-Turbo | Mechanical supercharging (Compressor) | |
| Position of cylinders: | V engine | V engine | |
| Valvetrain: | OHV | - | |
| Number of cylinders: | 12 | 6 | 6 |
| Number of valves per cylinder: | 4 | 2 | 2 |
| Compression ratio: | 8 | 8.5 | |
| Piston Stroke: | 86.36 mm | 86.4 mm | |
| Cylinder Bore: | 96.52 mm | 96.5 mm | |
| Wheel Drive: | All wheel drive (4x4) | Rear wheel drive | Front wheel drive |
| Number of Gears (automatic transmission): | 8 | 3 Hydramatic | 4 |
| Length: | 5546 mm | 5326 mm | 5260 mm |
| Width: | 2148 mm | 1956 mm | 1910 mm |
| Height: | 1571 mm | 1336 mm | 1390 mm |
| Wheelbase: | 3295 mm | 2845 mm | 2890 mm |
| Front track: | 1562 mm | 1590 mm | |
| Rear (Back) track: | 1542 mm | 1580 mm | |
| Minimum volume of Luggage (trunk): | 507 l | 416 l | 495 l |
| Front suspension: | Wishbone | The depreciated rack | |
| Rear suspension: | Multi-link independent | Helical spring | |
| Front brakes: | Ventilated discs | Ventilated discs | Ventilated discs |
| Rear brakes: | Ventilated discs | Drum | Drum |
| Kerb Weight: | 2490 kg | 1733 kg | 1675 kg |
| ABS: | yes | ||
| Steering type: | Steering rack and pinion | Steering rack and pinion | |
| Power steering: | Electric Steering | Hydraulic Steering | |
| Minimum turning circle (turning diameter): | 12.8 m | ||
| Tire size: | 185/75 R14; 195/70 R14; 205/65 R14; 215/60 R14; 195/70 R14 | 225/60 R16 | |
| Wheel rims size: | R14 |