Comparison Buick Regal II Coupe 3.8 V6 (152 Hp) Automatic & Alpina B3 Touring (G21, facelift 2023) 3.0 (495 Hp) AWD SWITCH-TRONIC
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| Brand: | Buick | Alpina |
| Model: | Regal | B3 |
| Generation: | Regal II Coupe | B3 Touring (G21, facelift 2023) |
| Engine / modification: | 3.8 V6 (152 Hp) Automatic | 3.0 (495 Hp) AWD SWITCH-TRONIC |
| Production start: | 1978 year | 2022 year |
| Production end: | 1980 year | |
| Coupe type: | Coupe | |
| Powertrain Architecture: | Internal Combustion engine | |
| Num. of Doors: | 2 | 5 |
| Num. of seats: | 5 | 5 |
| Fuel consumption / economy - urban: | 12.4 l/100 km | |
| Fuel consumption / economy - extra urban: | 9.0 l/100 km | |
| Fuel consumption / economy - combined: | 11.2 l/100 km | |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.47 | |
| Fuel tank volume: | 68 l | 59 l |
| Combined fuel consumption (WLTP): | 10.1 l/100 km | |
| Emission standard: | Euro 6d-ISC-FCM | |
| Power: | 152 hp | 495 hp |
| Max power in: | 3800 rpm. | 5000-7000 rpm. |
| Maximum speed: | 302 km/h | |
| Acceleration from 0 to 100 km/h: | 3.7 sec | |
| CO2 emissions (WLTP): | 229 g/km | |
| Torque: | 332 Nm @ 2400 rpm. | 730 Nm @ 2500-4500 rpm. |
| Engine position: | Front, longitudinal | Front, longitudinal |
| Engine displacement: | 3791 cm3 | 2993 cm3 |
| Fuel System: | Carburettor | Direct injection |
| Aspiration / Turbine: | Turbocharger | |
| Position of cylinders: | V engine | Inline |
| Valvetrain: | OHV | DOHC |
| Number of cylinders: | 6 | 6 |
| Number of valves per cylinder: | 2 | 4 |
| Compression ratio: | 8 | 9.3 |
| Piston Stroke: | 86.36 mm | 90 mm |
| Cylinder Bore: | 96.52 mm | 84 mm |
| Wheel Drive: | Rear wheel drive | All wheel drive (4x4) |
| Number of Gears (automatic transmission): | 3 Hydramatic | 8 Switch-Tronic |
| Length: | 5080 mm | 4723 mm |
| Width: | 1781 mm | 1827 mm |
| Width including mirrors: | 2068 mm | |
| Height: | 1356 mm | 1438 mm |
| Wheelbase: | 2746 mm | 2851 mm |
| Front track: | 1486 mm | 1577 mm |
| Rear (Back) track: | 1468 mm | 1572 mm |
| Minimum volume of Luggage (trunk): | 462 l | 500 l |
| Maximum amount of Luggage (trunk): | 1510 l | |
| Front suspension: | Independent, spring | Independent, Spring McPherson, with stabilizer |
| Rear suspension: | Suspension De-Dion | Independent, spring multi-link with stabilizer |
| Max weight: | 2430 kg | |
| Front brakes: | Disc | Ventilated discs |
| Rear brakes: | Drum | Ventilated discs |
| Kerb Weight: | 1490 kg | 1955 kg |
| Steering type: | Cone worm with recirculation balls | Steering rack and pinion |
| Power steering: | Electric Steering | |
| Minimum turning circle (turning diameter): | 12.8 m | |
| Permitted trailer load with brakes (12%): | 1800 kg | |
| Permitted trailer load without brakes: | 750 kg | |
| Tire size: | 205/70 R14 | Front wheel tires: 255/35 R19 |
| Wheel rims size: | R14 | Front wheel rims: 8.5J x 19 |