Comparison Buick Regal IV Sedan 3.8 V6 (304 Hp) Automatic & Trumpchi GA4 1.3T (137 Hp) & Aston Martin V12 Vanquish S 5.9 V12 (527 Hp) Automatic & Holden Calais (VT) 5.0 i V8 (243 Hp)
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| Brand: | Buick | Trumpchi | Aston Martin | Holden |
| Model: | Regal | GA4 | Vanquish | Calais |
| Generation: | Regal IV Sedan | GA4 | V12 Vanquish | Calais (VT) |
| Engine / modification: | 3.8 V6 (304 Hp) Automatic | 1.3T (137 Hp) | S 5.9 V12 (527 Hp) Automatic | 5.0 i V8 (243 Hp) |
| Production start: | 1997 year | 2018 year | 2004 year | 2000 year |
| Production end: | 2004 year | 2007 year | 2006 year | |
| Coupe type: | Sedan | Sedan | Coupe | Sedan |
| Num. of Doors: | 4 | 4 | 2 | 4 |
| Num. of seats: | 5 | 5 | 2/2+2 | 5 |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.32 | |||
| Fuel tank volume: | 64 l | 50 l | 73 l | |
| Emission standard: | China V | |||
| Power: | 304 hp | 137 hp | 527 hp | 243 hp |
| Max power in: | 5200 rpm. | 5500 rpm. | 7000 rpm. | 4800 rpm. |
| Maximum speed: | 322 km/h | |||
| Acceleration from 0 to 100 km/h: | >4.8 sec | |||
| Torque: | 407 Nm @ 3600 rpm. | 202 Nm @ 1500-4200 rpm. | 577 Nm/5800 rpm. | 400 Nm @ 3600 rpm. |
| Model Engine: | L67 | 4A13M1 | ||
| Engine position: | Front, transverse | Front, longitudinal | ||
| Engine displacement: | 3791 cm3 | 1325 cm3 | 5935 cm3 | 4981 cm3 |
| Engine oil capacity: | 4.3 l | |||
| Coolant: | 11.5 l | |||
| Fuel System: | Multi-point injection | Multi-point injection | Multi-point injection | |
| Aspiration / Turbine: | Turbocharger | |||
| Position of cylinders: | V engine | Inline | V engine | V engine |
| Valvetrain: | DCVVT | |||
| Number of cylinders: | 6 | 4 | 12 | 8 |
| Number of valves per cylinder: | 2 | 4 | 2 | |
| Compression ratio: | 8.8 | |||
| Piston Stroke: | 86.36 mm | 76.8 mm | ||
| Cylinder Bore: | 96.52 mm | 101.6 mm | ||
| Wheel Drive: | Front wheel drive | Front wheel drive | Rear wheel drive | Rear wheel drive |
| Number of Gears (automatic transmission): | 4 Hydramatic | 6 | 4 | |
| Number of Gears (manual transmission): | 6 | |||
| Length: | 4983 mm | 4692 mm | 4665 mm | 4885 mm |
| Width: | 1847 mm | 1805 mm | 1923 mm | 1840 mm |
| Height: | 1438 mm | 1500 mm | 1318 mm | 1450 mm |
| Wheelbase: | 2769 mm | 2660 mm | 2790 mm | |
| Front track: | 1575 mm | 1570 mm | ||
| Rear (Back) track: | 1557 mm | 1585 mm | ||
| Minimum volume of Luggage (trunk): | 473 l | 480 l | 475 l | |
| Front suspension: | Independent type McPherson | McPherson | Coil spring | |
| Rear suspension: | Independent, spring | Torsion | Helical spring | |
| Front brakes: | Ventilated discs | Ventilated discs | Ventilated discs | Ventilated discs |
| Rear brakes: | Disc | Disc | Ventilated discs | Disc |
| Kerb Weight: | 1650 kg | 1875 kg | 1630 kg | |
| ABS: | yes | yes | yes | yes |
| Steering type: | Steering rack and pinion | Steering rack and pinion | Steering rack and pinion | |
| Power steering: | Hydraulic Steering | Electric Steering | Electric Steering | Hydraulic Steering |
| Tire size: | 225/45 R16 | 205/55 R16 | 205/65 R15 | |
| Wheel rims size: | R16 | R16 |