Comparison Buick Regal II Coupe (facelift 1981) 4.3 V8 (121 Hp) Automatic & Buick Riviera VI 3.8 V6 (185 Hp) & Buick Park Avenue (CW52K) 3.8 i V6 (205 Hp)
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| Brand: | Buick | Buick | Buick |
| Model: | Regal | Riviera | Park Avenue |
| Generation: | Regal II Coupe (facelift 1981) | Riviera VI | Park Avenue (CW52K) |
| Engine / modification: | 4.3 V8 (121 Hp) Automatic | 3.8 V6 (185 Hp) | 3.8 i V6 (205 Hp) |
| Production start: | 1981 year | 1979 year | 1996 year |
| Production end: | 1987 year | 1985 year | 1998 year |
| Coupe type: | Coupe | Coupe | Sedan |
| Num. of Doors: | 2 | 2 | 4 |
| Num. of seats: | 5 | 2 | 5 |
| Fuel consumption / economy - urban: | 13.1 l/100 km | ||
| Fuel consumption / economy - extra urban: | 8.7 l/100 km | ||
| Fuel consumption / economy - combined: | 11.2 l/100 km | 9.5 l/100 km | |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.45 | ||
| Fuel tank volume: | 68 l | 68 l | |
| Emission standard: | EURO VI | ||
| CO2 emissions: | 107 g/km | ||
| Power: | 121 hp | 185 hp | 205 hp |
| Max power in: | 4000 rpm. | 5200 rpm. | |
| Maximum speed: | 170 km/h | 203 km/h | |
| Acceleration from 0 to 100 km/h: | 14.0 sec | 9.5 sec | |
| Torque: | 275 Nm @ 2000 rpm. | 324 Nm/3700 rpm. | |
| Model Engine: | LS5 | ||
| Engine position: | Front, longitudinal | Front, transverse | |
| Engine displacement: | 4344 cm3 | 3785 cm3 | |
| Engine oil capacity: | 4.7 l | ||
| Coolant: | 20.0 l | ||
| Fuel System: | Carburettor | Multi-point injection | |
| Position of cylinders: | V engine | V engine | |
| Valvetrain: | DOHC, Ti-VCT | - | |
| Number of cylinders: | 8 | 6 | |
| Number of valves per cylinder: | 2 | 2 | |
| Compression ratio: | 8 | 9.4 | |
| Piston Stroke: | 76.2 mm | 86.36 mm | |
| Cylinder Bore: | 95.25 mm | 96.52 mm | |
| Wheel Drive: | Front wheel drive | Front wheel drive | |
| Number of Gears (automatic transmission): | 3 Hydramatic | 4 | 4 |
| Number of Gears (manual transmission): | 5 | ||
| Length: | 5095 mm | 5232 mm | 5220 mm |
| Width: | 1819 mm | 5232 mm | 1883 mm |
| Width with mirrors folded: | 1783 mm | ||
| Width including mirrors: | 1941 mm | ||
| Height: | 1374 mm | 1410 mm | |
| Wheelbase: | 2746 mm | 2896 mm | 2814 mm |
| Front track: | 1486 mm | 1535 mm | |
| Rear (Back) track: | 1468 mm | 1540 mm | |
| Minimum volume of Luggage (trunk): | 459 l | 574 l | |
| Maximum amount of Luggage (trunk): | 1093 l | ||
| Front suspension: | Independent, spring | Wishbone | |
| Rear suspension: | Suspension De-Dion | The depreciated rack | |
| Max weight: | 1600 kg | 2120 kg | |
| Front brakes: | Ventilated discs | Ventilated discs | |
| Rear brakes: | Drum | Drum | |
| Kerb Weight: | 1550 kg | 1604 kg | |
| ABS: | yes | yes | |
| Steering type: | Cone worm with recirculation balls | Steering rack and pinion | |
| Power steering: | Electric Steering | Hydraulic Steering | |
| Max. roof load: | 50 kg | ||
| Minimum turning circle (turning diameter): | 12.8 m | ||
| Tire size: | 195/75 R14 | 215/60 R16 V | |
| Wheel rims size: | R14 |