Comparison Buick Regal II Coupe 5.0 V8 (137 Hp) Automatic & Buick LaCrosse II (facelift 2014) 3.6 V6 (304 Hp) Automatic & Buick Regal I Coupe 5.7 V8 (152 Hp)
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| Brand: | Buick | Buick | Buick |
| Model: | Regal | LaCrosse | Regal |
| Generation: | Regal II Coupe | LaCrosse II (facelift 2014) | Regal I Coupe |
| Engine / modification: | 5.0 V8 (137 Hp) Automatic | 3.6 V6 (304 Hp) Automatic | 5.7 V8 (152 Hp) |
| Production start: | 1978 year | 2014 year | 1973 year |
| Production end: | 1987 year | 2016 year | 1977 year |
| Coupe type: | Coupe | Sedan | Coupe |
| Powertrain Architecture: | Internal Combustion engine | ||
| Num. of Doors: | 2 | 4 | 2 |
| Num. of seats: | 5 | 5 | 5 |
| Fuel consumption / economy - urban: | 16.8 l/100 km | 13.1 l/100 km | |
| Fuel consumption / economy - extra urban: | 11.2 l/100 km | 8.4 l/100 km | |
| Fuel consumption / economy - combined: | 13.8 l/100 km | ||
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.47 | 0.48 | |
| Fuel tank volume: | 68 l | 70.5 l | 83 l |
| Power: | 137 hp | 304 hp | 152 hp |
| Max power in: | 3800 rpm. | 6800 rpm. | 3600 rpm. |
| Torque: | 325 Nm @ 2000 rpm. | 358 Nm @ 5300 rpm. | 366 Nm @ 2000 rpm. |
| Model Engine: | LFX | ||
| Engine position: | Front, longitudinal | Front, longitudinal | |
| Engine displacement: | 5001 cm3 | 3564 cm3 | 5724 cm3 |
| Engine oil capacity: | 5.7 l | ||
| Coolant: | 9.4 l | ||
| Fuel System: | Carburettor | Carburettor | |
| Aspiration / Turbine: | Naturally aspirated engine | ||
| Position of cylinders: | V engine | V engine | |
| Valvetrain: | DOHC, CVVT | ||
| Number of cylinders: | 8 | 6 | 8 |
| Number of valves per cylinder: | 2 | 4 | 2 |
| Compression ratio: | 8.5 | 11.5 | 8.5 |
| Piston Stroke: | 88.39 mm | 85.6 mm | 97.79 mm |
| Cylinder Bore: | 94.89 mm | 94 mm | 96.52 mm |
| Wheel Drive: | Rear wheel drive | Front wheel drive | Rear wheel drive |
| Number of Gears (automatic transmission): | 3 Hydramatic | ||
| Number of Gears (manual transmission): | 3 | ||
| Length: | 5080 mm | 5001 mm | 5352 mm |
| Width: | 1781 mm | 1857 mm | 2007 mm |
| Height: | 1356 mm | 1504 mm | 1359 mm |
| Wheelbase: | 2746 mm | 2837 mm | 2845 mm |
| Front track: | 1486 mm | 1567 mm | 1562 mm |
| Rear (Back) track: | 1468 mm | 1575 mm | 1542 mm |
| Ride height(clearance): | 145 mm | ||
| Minimum volume of Luggage (trunk): | 462 l | 416 l | |
| Maximum amount of Luggage (trunk): | 376 l | ||
| Front suspension: | Independent, spring | ||
| Rear suspension: | Suspension De-Dion | ||
| Front brakes: | Disc | Disc | |
| Rear brakes: | Drum | Drum | |
| Kerb Weight: | 1485 kg | 1767 kg | 1780 kg |
| Steering type: | Cone worm with recirculation balls | Steering rack and pinion | |
| Power steering: | Electric Steering | ||
| Minimum turning circle (turning diameter): | 12.8 m | 11.75 m | 13.6 m |
| Permitted trailer load with brakes (12%): | 454 kg | ||
| Tire size: | 195/75 R14 | 235/50 R17; 235/50 R18 | 185/75 R14; 195/70 R14; 205/65 R14; 215/60 R14; 195/70 R14 |
| Wheel rims size: | R14 | R14 |