Comparison Buick Regal II Coupe 4.9 V8 (142 Hp) Automatic & Buick Riviera 3.8 i V6 Supercharged (243 Hp)
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| Brand: | Buick | Buick |
| Model: | Regal | Riviera |
| Generation: | Regal II Coupe | Riviera |
| Engine / modification: | 4.9 V8 (142 Hp) Automatic | 3.8 i V6 Supercharged (243 Hp) |
| Production start: | 1978 year | 1998 year |
| Production end: | 1987 year | 2000 year |
| Coupe type: | Coupe | Coupe |
| Num. of Doors: | 2 | 2 |
| Num. of seats: | 5 | 5 |
| Fuel consumption / economy - urban: | 13.8 l/100 km | 13.1 l/100 km |
| Fuel consumption / economy - extra urban: | 9.4 l/100 km | 8.7 l/100 km |
| Fuel consumption / economy - combined: | 11.8 l/100 km | |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.47 | |
| Fuel tank volume: | 68 l | 70 l |
| Emission standard: | EURO VI | |
| CO2 emissions: | 107 g/km | |
| Power: | 142 hp | 243 hp |
| Max power in: | 4000 rpm. | 5200 rpm. |
| Maximum speed: | 160 km/h | 175 km/h |
| Acceleration from 0 to 100 km/h: | 14.9 sec | 7.2 sec |
| Torque: | 325 Nm @ 1800 rpm. | 380 Nm/3600 rpm. |
| Engine position: | Front, longitudinal | Front, transverse |
| Engine displacement: | 4942 cm3 | 3791 cm3 |
| Fuel System: | Carburettor | Multi-point injection |
| Aspiration / Turbine: | Mechanical supercharging (Compressor) | |
| 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: | 8.2 | 8.5 |
| Piston Stroke: | 76.2 mm | 86.4 mm |
| Cylinder Bore: | 101.6 mm | 96.5 mm |
| Wheel Drive: | Front wheel drive | Front wheel drive |
| Number of Gears (automatic transmission): | 3 Hydramatic | 4 |
| Number of Gears (manual transmission): | 5 | |
| Length: | 5080 mm | 5260 mm |
| Width: | 1781 mm | 1910 mm |
| Width with mirrors folded: | 1783 mm | |
| Width including mirrors: | 1941 mm | |
| Height: | 1356 mm | 1390 mm |
| Wheelbase: | 2746 mm | 2890 mm |
| Front track: | 1486 mm | 1590 mm |
| Rear (Back) track: | 1468 mm | 1580 mm |
| Minimum volume of Luggage (trunk): | 462 l | 495 l |
| Maximum amount of Luggage (trunk): | 1093 l | |
| Front suspension: | Independent, spring | The depreciated rack |
| Rear suspension: | Suspension De-Dion | Helical spring |
| Max weight: | 1600 kg | |
| Front brakes: | Disc | Ventilated discs |
| Rear brakes: | Drum | Drum |
| Kerb Weight: | 1543 kg | 1675 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 | 225/60 R16 |
| Wheel rims size: | R14 |