Comparison Buick Regal I Coupe (facelift 1976) S/R 5.7 V8 (142 Hp) Automatic & Buick Regal II Sedan 4.1 V6 (127 Hp) Automatic & Buick Regal VI Sportback 2.0 (250 Hp) AWD Automatic & Buick LaCrosse II 3.6 V6 (280 Hp) Automatic
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| Brand: | Buick | Buick | Buick | Buick |
| Model: | Regal | Regal | Regal | LaCrosse |
| Generation: | Regal I Coupe (facelift 1976) | Regal II Sedan | Regal VI Sportback | LaCrosse II |
| Engine / modification: | S/R 5.7 V8 (142 Hp) Automatic | 4.1 V6 (127 Hp) Automatic | 2.0 (250 Hp) AWD Automatic | 3.6 V6 (280 Hp) Automatic |
| Production start: | 1973 year | 1978 year | 2018 year | 2009 year |
| Production end: | 1977 year | 1987 year | 2011 year | |
| Coupe type: | Coupe | Sedan | Hatchback | Sedan |
| Powertrain Architecture: | Internal Combustion engine | |||
| Num. of Doors: | 2 | 4 | 4 | 4 |
| Num. of seats: | 5 | 5 | 5 | 5 |
| Fuel consumption / economy - urban: | 12.4 l/100 km | 11.2 l/100 km | 13.8 l/100 km | |
| Fuel consumption / economy - extra urban: | 8.1 l/100 km | 8.1 l/100 km | 8.7 l/100 km | |
| Fuel consumption / economy - combined: | 10.7 l/100 km | |||
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.48 | 0.46 | ||
| Fuel tank volume: | 83 l | 68 l | 70.5 l | |
| Power: | 142 hp | 127 hp | 250 hp | 280 hp |
| Max power in: | 3200 rpm. | 4000 rpm. | 5500 rpm. | 6300 rpm. |
| Torque: | 380 Nm @ 1400 rpm. | 278 Nm @ 2000 rpm. | 400 Nm @ 3000-4000 rpm. | 351 Nm @ 4800 rpm. |
| Model Engine: | LTG | |||
| Engine position: | Front, longitudinal | Front, longitudinal | Front, transverse | |
| Engine displacement: | 5724 cm3 | 4128 cm3 | 1998 cm3 | 3564 cm3 |
| Engine oil capacity: | 5.7 l | 5.2 l | ||
| Coolant: | 5.0 l | 9.4 l | ||
| Fuel System: | Carburettor | Carburettor | Direct injection | |
| Aspiration / Turbine: | Turbocharger | Naturally aspirated engine | ||
| Position of cylinders: | V engine | V engine | Inline | |
| Valvetrain: | OHV | DOHC-CVVT | DOHC, VVT | |
| Number of cylinders: | 8 | 6 | 4 | 6 |
| Number of valves per cylinder: | 2 | 2 | 4 | 4 |
| Compression ratio: | 8 | 8 | 11.3 | |
| Piston Stroke: | 97.79 mm | 86.36 mm | 86 mm | 85.6 mm |
| Cylinder Bore: | 96.52 mm | 100.71 mm | 86 mm | 94 mm |
| Wheel Drive: | Rear wheel drive | Rear wheel drive | All wheel drive (4x4) | Front wheel drive |
| Number of Gears (automatic transmission): | 3 Hydramatic | 3 Hydramatic | 8 | |
| Length: | 5326 mm | 4978 mm | 4900 mm | 5003 mm |
| Width: | 1956 mm | 1806 mm | 1862 mm | 1858 mm |
| Height: | 1336 mm | 1407 mm | 1455 mm | 1503 mm |
| Wheelbase: | 2845 mm | 2746 mm | 2830 mm | 2837 mm |
| Front track: | 1562 mm | 1486 mm | 1595 mm | 1567 mm |
| Rear (Back) track: | 1542 mm | 1466 mm | 1600 mm | 1576 mm |
| Minimum volume of Luggage (trunk): | 416 l | 459 l | 892 l | |
| Maximum amount of Luggage (trunk): | 1719 l | 362 l | ||
| Front suspension: | Independent, spring | Independent type McPherson | ||
| Rear suspension: | Suspension De-Dion | Multi-link independent | ||
| Front brakes: | Ventilated discs | Ventilated discs | Disc | |
| Rear brakes: | Drum | Drum | Disc | |
| Kerb Weight: | 1743 kg | 1537 kg | 1550 kg | 1844 kg |
| ABS: | yes | |||
| Steering type: | Cone worm with recirculation balls | Steering rack and pinion | Steering rack and pinion | |
| Power steering: | Electric Steering | |||
| Minimum turning circle (turning diameter): | 12.8 m | 12.8 m | 12.5 m | 11.75 m |
| Permitted trailer load with brakes (12%): | 454 kg | |||
| Tire size: | 185/75 R14; 195/70 R14; 205/65 R14; 215/60 R14; 195/70 R14 | 185/75 R14 | 245/45 R18 | 245/45 R18; 245/40 R19 |
| Wheel rims size: | R14 | R14 | R18 |