Comparison Buick LaCrosse III 2.5 (194 Hp) Automatic & Buick Regal II Coupe (facelift 1981) 3.8 V6 (177 Hp) Automatic & Buick Regal III Coupe 3.1 V6 (142 Hp) Automatic
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| Brand: | Buick | Buick | Buick |
| Model: | LaCrosse | Regal | Regal |
| Generation: | LaCrosse III | Regal II Coupe (facelift 1981) | Regal III Coupe |
| Engine / modification: | 2.5 (194 Hp) Automatic | 3.8 V6 (177 Hp) Automatic | 3.1 V6 (142 Hp) Automatic |
| Production start: | 2017 year | 1981 year | 1988 year |
| Production end: | 2019 year | 1987 year | 1996 year |
| Coupe type: | Sedan | Coupe | Coupe |
| Num. of Doors: | 4 | 2 | 2 |
| Num. of seats: | 5 | 5 | 5 |
| Fuel consumption / economy - urban: | 9.4 l/100 km | 13.1 l/100 km | 12.4 l/100 km |
| Fuel consumption / economy - extra urban: | 6.7 l/100 km | 9.4 l/100 km | 7.8 l/100 km |
| Fuel consumption / economy - combined: | 11.2 l/100 km | 10.2 l/100 km | |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.45 | 0.36 | |
| Fuel tank volume: | 60 l | 68 l | 62 l |
| Power: | 194 hp | 177 hp | 142 hp |
| Max power in: | 6300 rpm. | 4000 rpm. | 4500 rpm. |
| Torque: | 254 Nm @ 4400 rpm. | 373 Nm @ 2600 rpm. | 258 Nm @ 3600 rpm. |
| Model Engine: | LHN | LD5/LC6 | LH0 |
| Engine position: | Front, transverse | Front, longitudinal | Front, transverse |
| Engine displacement: | 2500 cm3 | 3791 cm3 | 3128 cm3 |
| Engine oil capacity: | 4.7 l | 4.7 l | 4.3 l |
| Coolant: | 9.0 l | 12.5 l | 11.5 l |
| Fuel System: | Direct injection | Carburettor | Multi-point injection |
| Aspiration / Turbine: | Turbocharger | ||
| Position of cylinders: | Inline | V engine | V engine |
| Valvetrain: | OHV | OHV | |
| Number of cylinders: | 4 | 6 | 6 |
| Number of valves per cylinder: | 4 | 2 | 2 |
| Compression ratio: | 8 | 8.8 | |
| Piston Stroke: | 86.36 mm | 84 mm | |
| Cylinder Bore: | 96.52 mm | 88.9 mm | |
| Wheel Drive: | Front wheel drive | Rear wheel drive | Front wheel drive |
| Number of Gears (automatic transmission): | 6 | 3 Hydramatic | 4 Hydramatic |
| Length: | 5016 mm | 5095 mm | 4882 mm |
| Width: | 1867 mm | 1819 mm | 1842 mm |
| Height: | 1460 mm | 1374 mm | 1346 mm |
| Wheelbase: | 2906 mm | 2746 mm | 2730 mm |
| Front track: | 1598 mm | 1486 mm | 1506 mm |
| Rear (Back) track: | 1603 mm | 1468 mm | 1473 mm |
| Minimum volume of Luggage (trunk): | 405 l | 459 l | 439 l |
| Front suspension: | Independent type McPherson | Independent, spring | The depreciated rack |
| Rear suspension: | Multi-link independent | Suspension De-Dion | Wishbone |
| Front brakes: | Disc | Ventilated discs | Ventilated discs |
| Rear brakes: | Disc | Drum | Disc |
| Kerb Weight: | 1503 kg | 1426 kg | |
| ABS: | yes | yes | |
| Steering type: | Cone worm with recirculation balls | Steering rack and pinion | |
| Minimum turning circle (turning diameter): | 11.6 m | 12.8 m | 12.5 m |
| Tire size: | 235/50 R18 | 205/70 R14 | 205/70 R14 |
| Wheel rims size: | R18 | R14 | R14 |