Comparison Buick Roadmaster Wagon 5.7 i V8 (264 Hp) & Buick Regal V Sedan 2.0 (223 Hp) & Buick LaCrosse 5.3i V8 16V AFM (300 Hp)
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| Brand: | Buick | Buick | Buick |
| Model: | Roadmaster | Regal | LaCrosse |
| Generation: | Roadmaster Wagon | Regal V Sedan | LaCrosse |
| Engine / modification: | 5.7 i V8 (264 Hp) | 2.0 (223 Hp) | 5.3i V8 16V AFM (300 Hp) |
| Production start: | 1993 year | 2009 year | 2004 year |
| Production end: | 1997 year | 2013 year | 2009 year |
| Coupe type: | Combi | Sedan | Sedan |
| Num. of Doors: | 5 | 4 | 4 |
| Num. of seats: | 5 | 5 | 5 |
| Fuel consumption / economy - urban: | 11.8 l/100 km | ||
| Fuel consumption / economy - extra urban: | 7.3 l/100 km | ||
| Fuel consumption / economy - combined: | 11.8 l/100 km | 9.8 l/100 km | |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.30 | ||
| Fuel tank volume: | 83 l | 70 l | 66 l |
| Power: | 264 hp | 223 hp | 300 hp |
| Max power in: | 5000 rpm. | 5300 rpm. | 5800 rpm. |
| Torque: | 454 Nm/3200 rpm. | 349 Nm @ 2000 rpm. | 438 Nm @ 4000 rpm. |
| Model Engine: | LHU | LS4 | |
| Engine position: | Front, longitudinal | Front, transverse | Front, longitudinal |
| Engine displacement: | 5733 cm3 | 1998 cm3 | 5327 cm3 |
| Engine oil capacity: | 6 l | 5.7 l | |
| Coolant: | 7.8 l | 12.6 l | |
| Fuel System: | Multi-point injection | Direct injection | Multi-point injection |
| Maximum engine speed: | 6350 rpm. | ||
| Aspiration / Turbine: | Turbocharger | ||
| Position of cylinders: | V engine | Inline | V engine |
| Valvetrain: | DOHC-CVVT | - | |
| Number of cylinders: | 8 | 4 | 8 |
| Number of valves per cylinder: | 2 | 4 | 2 |
| Compression ratio: | 10.5 | 9.2 | 9.5 |
| Piston Stroke: | 88.4 mm | 86 mm | 92 mm |
| Cylinder Bore: | 101.6 mm | 86 mm | 96 mm |
| Wheel Drive: | Rear wheel drive | Front wheel drive | Front wheel drive |
| Number of Gears (automatic transmission): | 4 | 4 | |
| Number of Gears (manual transmission): | 6 | ||
| Length: | 5526 mm | 4831 mm | 5030 mm |
| Width: | 2028 mm | 1857 mm | 1855 mm |
| Height: | 1531 mm | 1483 mm | 1460 mm |
| Wheelbase: | 2945 mm | 2738 mm | 2805 mm |
| Front track: | 1578 mm | 1585 mm | 1565 mm |
| Rear (Back) track: | 1628 mm | 1587 mm | 1560 mm |
| Minimum volume of Luggage (trunk): | 403 l | 455 l | |
| Maximum amount of Luggage (trunk): | 2616 l | ||
| Front suspension: | Double wishbone | The depreciated rack | |
| Rear suspension: | Helical spring | The depreciated rack | |
| Front brakes: | Ventilated discs | Ventilated discs | Ventilated discs |
| Rear brakes: | Drum | Ventilated discs | Disc |
| Kerb Weight: | 2045 kg | 1665 kg | |
| ABS: | yes | yes | yes |
| Steering type: | Steering rack and pinion | Steering rack and pinion | |
| Power steering: | Hydraulic Steering | ||
| Minimum turning circle (turning diameter): | 11.4 m | ||
| Tire size: | 225/70 R15 S | 235/50 R18 | 225/60 R16 |
| Wheel rims size: | R18 | 6.5J x 16 |