Comparison Rolls-Royce Silver Seraph 5.4 i V12 (326 Hp) & Buick LaCrosse III 3.6 V6 (310 Hp) Automatic & Buick Century 2.2 (122 Hp)
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| Brand: | Rolls-Royce | Buick | Buick |
| Model: | Silver Seraph | LaCrosse | Century |
| Generation: | Silver Seraph | LaCrosse III | Century |
| Engine / modification: | 5.4 i V12 (326 Hp) | 3.6 V6 (310 Hp) Automatic | 2.2 (122 Hp) |
| Production start: | 1998 year | 2017 year | 1993 year |
| Production end: | 2019 year | 1997 year | |
| Coupe type: | Sedan | Sedan | Sedan |
| Num. of Doors: | 4 | 4 | 4 |
| Num. of seats: | 5 | 5 | 6 |
| Fuel consumption / economy - urban: | 25.4 l/100 km | 11.2 l/100 km | |
| Fuel consumption / economy - extra urban: | 12.8 l/100 km | 7.8 l/100 km | |
| Fuel consumption / economy - combined: | 17.4 l/100 km | 8.6 l/100 km | |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) | Petrol (Gasoline) |
| Fuel tank volume: | 94 l | 60 l | 63 l |
| Power: | 326 hp | 310 hp | 122 hp |
| Max power in: | 5000 rpm. | 6800 rpm. | 5200 rpm. |
| Maximum speed: | 225 km/h | ||
| Acceleration from 0 to 100 km/h: | 7.6 sec | ||
| Torque: | 490 Nm/3900 rpm. | 363 Nm @ 5200 rpm. | 176 Nm @ 4000 rpm. |
| Model Engine: | LGX | LN2 | |
| Engine position: | Front, longitudinal | Front, transverse | Front, transverse |
| Engine displacement: | 5379 cm3 | 3649 cm3 | 2190 cm3 |
| Engine oil capacity: | 5.7 l | 4.2 l | |
| Coolant: | 9.0 l | 8.2 l | |
| Fuel System: | Multi-point injection | Direct injection | Multi-point injection |
| Position of cylinders: | V engine | V engine | Inline |
| Valvetrain: | OHC | VVT | |
| Number of cylinders: | 12 | 6 | 4 |
| Number of valves per cylinder: | 2 | 4 | 2 |
| Compression ratio: | 10 | 9 | |
| Piston Stroke: | 79 mm | 88 mm | |
| Cylinder Bore: | 85 mm | 89 mm | |
| Wheel Drive: | Rear wheel drive | Front wheel drive | Front wheel drive |
| Number of Gears (automatic transmission): | 5 | 9 | 3 |
| Length: | 5390 mm | 5016 mm | 4803 mm |
| Width: | 1932 mm | 1867 mm | 1762 mm |
| Height: | 1515 mm | 1460 mm | 1377 mm |
| Wheelbase: | 3116 mm | 2906 mm | 2664 mm |
| Front track: | 1608 mm | 1598 mm | 1492 mm |
| Rear (Back) track: | 1608 mm | 1603 mm | 1442 mm |
| Minimum volume of Luggage (trunk): | 374 l | 425 l | 460 l |
| Front suspension: | Double wishbone | Independent type McPherson | Wishbone |
| Rear suspension: | Double wishbone | Multi-link independent | Helical spring |
| Max weight: | 2797 kg | ||
| Front brakes: | Ventilated discs | Disc | Disc |
| Rear brakes: | Ventilated discs | Disc | Drum |
| Kerb Weight: | 2400 kg | 1358 kg | |
| ABS: | yes | yes | yes |
| Steering type: | Steering rack and pinion | Steering rack and pinion | |
| Power steering: | Hydraulic Steering | Hydraulic Steering | |
| Minimum turning circle (turning diameter): | 11.6 m | ||
| Tire size: | 235/65 R16W | 235/50 R18 | 185/75 R14 |
| Wheel rims size: | R18 | R14 |