Comparison Buick Regal III Sedan 3.8 V6 (173 Hp) Automatic & Porsche 911 RSR (991) 4.0 (510 Hp) Automatic
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| Brand: | Buick | Porsche |
| Model: | Regal | 911 |
| Generation: | Regal III Sedan | 911 RSR (991) |
| Engine / modification: | 3.8 V6 (173 Hp) Automatic | 4.0 (510 Hp) Automatic |
| Production start: | 1988 year | 2016 year |
| Production end: | 1996 year | |
| Coupe type: | Sedan | Coupe |
| Num. of Doors: | 4 | 2 |
| Num. of seats: | 5 | 2 |
| Fuel consumption / economy - urban: | 12.4 l/100 km | |
| Fuel consumption / economy - extra urban: | 8.4 l/100 km | |
| Fuel consumption / economy - combined: | 10.7 l/100 km | |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.35 | |
| Fuel tank volume: | 62 l | |
| Power: | 173 hp | 510 hp |
| Max power in: | 4800 rpm. | |
| Torque: | 298 Nm @ 3200 rpm. | |
| Model Engine: | L27 | |
| Engine position: | Front, transverse | Rear, longitudinal |
| Engine displacement: | 3791 cm3 | |
| Engine oil capacity: | 4.3 l | |
| Coolant: | 10.5 l | |
| Fuel System: | Multi-point injection | Direct injection |
| Position of cylinders: | V engine | Boxer |
| Valvetrain: | OHV | |
| Number of cylinders: | 6 | 6 |
| Number of valves per cylinder: | 2 | 4 |
| Compression ratio: | 8.5 | |
| Piston Stroke: | 86.36 mm | 81.5 mm |
| Cylinder Bore: | 96.52 mm | 102 mm |
| Wheel Drive: | Front wheel drive | Rear wheel drive |
| Number of Gears (automatic transmission): | 4 Hydramatic | 6 |
| Length: | 4943 mm | 4557 mm |
| Width: | 1801 mm | 2042-2048 mm |
| Height: | 1384 mm | |
| Wheelbase: | 2730 mm | 2516 mm |
| Front track: | 1506 mm | |
| Rear (Back) track: | 1473 mm | |
| Minimum volume of Luggage (trunk): | 447 l | |
| Front suspension: | The depreciated rack | Double wishbone |
| Rear suspension: | Wishbone | Double wishbone |
| Front brakes: | Ventilated discs | Ventilated discs |
| Rear brakes: | Disc | Ventilated discs |
| Kerb Weight: | 1536 kg | 1243 kg |
| ABS: | yes | yes |
| Steering type: | Steering rack and pinion | |
| Power steering: | Hydraulic Steering | |
| Minimum turning circle (turning diameter): | 12.5 m | |
| Tire size: | 205/70 R14 | 30/68 R18; 31/71 R18 |
| Wheel rims size: | R14 | 12.5J x 18; 13J x 18 |