Comparison Buick Regal I Coupe (facelift 1976) S/R 3.8 V6 (106 Hp) Automatic & Lamborghini Aventador S Coupe 6.5 V12 (740 Hp) 4WD ISR & Buick Regal III Sedan 3.1 V6 (162 Hp) Automatic & Lamborghini Islero 4.0 V12 (320 Hp)
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| Brand: | Buick | Lamborghini | Buick | Lamborghini |
| Model: | Regal | Aventador | Regal | Islero |
| Generation: | Regal I Coupe (facelift 1976) | Aventador S Coupe | Regal III Sedan | Islero |
| Engine / modification: | S/R 3.8 V6 (106 Hp) Automatic | 6.5 V12 (740 Hp) 4WD ISR | 3.1 V6 (162 Hp) Automatic | 4.0 V12 (320 Hp) |
| Production start: | 1973 year | 2017 year | 1988 year | 1968 year |
| Production end: | 1977 year | 1996 year | 1970 year | |
| Coupe type: | Coupe | Coupe | Sedan | Coupe |
| Powertrain Architecture: | Internal Combustion engine | |||
| Num. of Doors: | 2 | 2 | 4 | 2 |
| Num. of seats: | 5 | 2 | 5 | 4 |
| Fuel consumption / economy - urban: | 26.2 l/100 km | 12.4 l/100 km | ||
| Fuel consumption / economy - extra urban: | 11.6 l/100 km | 8.1 l/100 km | ||
| Fuel consumption / economy - combined: | 16.9 l/100 km | 10.7 l/100 km | 16-18 l/100 km | |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.48 | 0.35 | ||
| Fuel tank volume: | 83 l | 62 l | 85 l | |
| Combined fuel consumption (WLTP): | 18.8 l/100 km | |||
| Emission standard: | Euro 6 | |||
| CO2 emissions: | 394 g/km | |||
| Power: | 106 hp | 740 hp | 162 hp | 320 hp |
| Max power in: | 3400 rpm. | 8400 rpm. | 5200 rpm. | 6500 rpm. |
| Maximum speed: | 350 km/h | 255 km/h | ||
| Acceleration from 0 to 100 km/h: | 2.9 sec | |||
| Acceleration from 0 to 200 km/h: | 8.8 sec | |||
| CO2 emissions (WLTP): | 499 g/km | |||
| Acceleration from 0 to 300 km/h: | 24.2 sec | |||
| Torque: | 251 Nm @ 2000 rpm. | 690 Nm @ 5500 rpm. | 251 Nm/4000 rpm. | 377 Nm @ 5000 rpm. |
| Stopping distance 100 km/h - 0: | 30 m | |||
| Model Engine: | L539 | |||
| Engine position: | Front, longitudinal | Middle, longitudinal | Front, transverse | Front, longitudinal |
| Engine displacement: | 3791 cm3 | 6498 cm3 | 3135 cm3 | 3929 cm3 |
| Engine oil capacity: | 12 l | |||
| Coolant: | 25 l | |||
| Fuel System: | Carburettor | Multi-point injection | Multi-point injection | Carburettor |
| Aspiration / Turbine: | Naturally aspirated engine | |||
| Position of cylinders: | V engine | V engine | V engine | V engine |
| Valvetrain: | OHV | OHV | DOHC | |
| Number of cylinders: | 6 | 12 | 6 | 12 |
| Number of valves per cylinder: | 2 | 4 | 2 | 2 |
| Compression ratio: | 8 | 11.8 | 9.6 | 9.5 |
| Piston Stroke: | 86.36 mm | 76.4 mm | 84 mm | 62 mm |
| Cylinder Bore: | 96.52 mm | 95 mm | 89 mm | 82 mm |
| Wheel Drive: | Rear wheel drive | All wheel drive (4x4) | Front wheel drive | Rear wheel drive |
| Number of Gears (automatic transmission): | 3 Hydramatic | 7 ISR | 4 Hydramatic | |
| Number of Gears (manual transmission): | 5 | |||
| Length: | 5326 mm | 4797 mm | 4948 mm | 4525 mm |
| Width: | 1956 mm | 2030 mm | 1842 mm | 1730 mm |
| Width including mirrors: | 2265 mm | |||
| Height: | 1336 mm | 1136 mm | 1384 mm | 1270 mm |
| Wheelbase: | 2845 mm | 2700 mm | 2730 mm | 2550 mm |
| Front track: | 1562 mm | 1506 mm | 1380 mm | |
| Rear (Back) track: | 1542 mm | 1473 mm | 1380 mm | |
| Minimum volume of Luggage (trunk): | 416 l | 447 l | ||
| Front suspension: | Double wishbone | The depreciated rack | Independent, spring | |
| Rear suspension: | Double wishbone | Wishbone | Independent, spring | |
| Front brakes: | Ventilated discs | Ventilated discs | Ventilated discs | Disc |
| Rear brakes: | Drum | Ventilated discs | Disc | Disc |
| Kerb Weight: | 1733 kg | 1575 kg | 1514 kg | 1220 kg |
| ABS: | yes | yes | ||
| Steering type: | Steering rack and pinion | Worm-reduction unit | ||
| Power steering: | Electric Steering | Hydraulic Steering | ||
| Minimum turning circle (turning diameter): | 12.8 m | 12.5 m | ||
| Tire size: | 185/75 R14; 195/70 R14; 205/65 R14; 215/60 R14; 195/70 R14 | 255/30 ZR20; 355/25 ZR21 | 205/70 R15 | |
| Wheel rims size: | R14 | 9J x 20; 13J x 21 | R15 |