Comparison Buick Regal II Coupe (facelift 1981) 3.8 V6 (182 Hp) Automatic & Buick Regal I Coupe (facelift 1976) S/R 3.8 V6 (106 Hp) & Buick LaCrosse II (facelift 2014) 3.6 V6 (304 Hp) AWD Automatic
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| Brand: | Buick | Buick | Buick |
| Model: | Regal | Regal | LaCrosse |
| Generation: | Regal II Coupe (facelift 1981) | Regal I Coupe (facelift 1976) | LaCrosse II (facelift 2014) |
| Engine / modification: | 3.8 V6 (182 Hp) Automatic | S/R 3.8 V6 (106 Hp) | 3.6 V6 (304 Hp) AWD Automatic |
| Production start: | 1981 year | 1973 year | 2014 year |
| Production end: | 1987 year | 1977 year | 2016 year |
| Coupe type: | Coupe | Coupe | Sedan |
| Powertrain Architecture: | Internal Combustion engine | ||
| Num. of Doors: | 2 | 2 | 4 |
| Num. of seats: | 5 | 5 | 5 |
| Fuel consumption / economy - urban: | 13.1 l/100 km | 13.8 l/100 km | |
| Fuel consumption / economy - extra urban: | 9.8 l/100 km | 9 l/100 km | |
| Fuel consumption / economy - combined: | 11.8 l/100 km | ||
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.45 | 0.48 | |
| Fuel tank volume: | 68 l | 83 l | 74 l |
| Power: | 182 hp | 106 hp | 304 hp |
| Max power in: | 4000 rpm. | 3400 rpm. | 6800 rpm. |
| Torque: | 366 Nm @ 2400 rpm. | 251 Nm @ 2000 rpm. | 358 Nm @ 5300 rpm. |
| Model Engine: | LD5/LC6 | LFX | |
| Engine position: | Front, longitudinal | Front, longitudinal | |
| Engine displacement: | 3791 cm3 | 3791 cm3 | 3564 cm3 |
| Engine oil capacity: | 4.7 l | 5.7 l | |
| Coolant: | 13.0 l | 9.4 l | |
| Fuel System: | Carburettor | Carburettor | |
| Aspiration / Turbine: | Turbocharger | Naturally aspirated engine | |
| Position of cylinders: | V engine | V engine | |
| Valvetrain: | OHV | OHV | DOHC, CVVT |
| Number of cylinders: | 6 | 6 | 6 |
| Number of valves per cylinder: | 2 | 2 | 4 |
| Compression ratio: | 8 | 8 | 11.5 |
| Piston Stroke: | 86.36 mm | 86.36 mm | 85.6 mm |
| Cylinder Bore: | 96.52 mm | 96.52 mm | 94 mm |
| Wheel Drive: | Rear wheel drive | Rear wheel drive | All wheel drive (4x4) |
| Number of Gears (automatic transmission): | 3 Hydramatic | ||
| Number of Gears (manual transmission): | 3 | ||
| Length: | 5095 mm | 5326 mm | 5001 mm |
| Width: | 1819 mm | 1956 mm | 1857 mm |
| Height: | 1374 mm | 1336 mm | 1504 mm |
| Wheelbase: | 2746 mm | 2845 mm | 2837 mm |
| Front track: | 1486 mm | 1562 mm | 1567 mm |
| Rear (Back) track: | 1468 mm | 1542 mm | 1575 mm |
| Minimum volume of Luggage (trunk): | 459 l | 416 l | |
| Maximum amount of Luggage (trunk): | 376 l | ||
| Front suspension: | Independent, spring | ||
| Rear suspension: | Suspension De-Dion | Double wishbone | |
| Front brakes: | Ventilated discs | Ventilated discs | |
| Rear brakes: | Drum | Drum | |
| Kerb Weight: | 1523 kg | 1725 kg | |
| Steering type: | Cone worm with recirculation balls | Steering rack and pinion | |
| Minimum turning circle (turning diameter): | 12.8 m | 12.8 m | 11.75 m |
| Tire size: | 205/70 R14 | 185/75 R14; 195/70 R14; 205/65 R14; 215/60 R14; 195/70 R14 | 245/45 R19 |
| Wheel rims size: | R14 | R14 |