2004 Buick Regal vs. 2007 Rolls-Royce Phantom
To start off, 2007 Rolls-Royce Phantom is newer by 3 year(s). Which means there will be less support and parts availability for 2004 Buick Regal. In addition, the cost of maintenance, including insurance, on 2004 Buick Regal would be higher. At 6,749 cc (12 cylinders), 2007 Rolls-Royce Phantom is equipped with a bigger engine. In terms of performance, 2007 Rolls-Royce Phantom (455 HP @ 5350 RPM) has 254 more horse power than 2004 Buick Regal. (201 HP @ 5200 RPM) In normal driving conditions, 2007 Rolls-Royce Phantom should accelerate faster than 2004 Buick Regal. With that said, vehicle weight also plays an important factor in acceleration. 2007 Rolls-Royce Phantom weights approximately 945 kg more than 2004 Buick Regal. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Rolls-Royce Phantom is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2007 Rolls-Royce Phantom. However, in wet, icy, snow, or gravel driving conditions, 2004 Buick Regal, being front wheel drive (FWD), will offer much better control with better grip. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2007 Rolls-Royce Phantom (720 Nm) has 415 more torque (in Nm) than 2004 Buick Regal. (305 Nm). This means 2007 Rolls-Royce Phantom will have an easier job in driving up hills or pulling heavy equipment than 2004 Buick Regal.
Compare all specifications:
| 2004 Buick Regal | 2007 Rolls-Royce Phantom | |
| Make | Buick | Rolls-Royce |
| Model | Regal | Phantom |
| Year Released | 2004 | 2007 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3791 cc | 6749 cc |
| Engine Cylinders | 6 cylinders | 12 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 201 HP | 455 HP |
| Engine RPM | 5200 RPM | 5350 RPM |
| Torque | 305 Nm | 720 Nm |
| Engine Bore Size | 97 mm | 92 mm |
| Engine Stroke Size | 86 mm | 84.6 mm |
| Engine Compression Ratio | 9.4:1 | 11.0:1 |
| Drive Type | Front | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1550 kg | 2495 kg |
| Vehicle Length | 4990 mm | 5840 mm |
| Vehicle Width | 1850 mm | 2000 mm |
| Vehicle Height | 1440 mm | 1640 mm |
| Wheelbase Size | 2780 mm | 3580 mm |
| Fuel Consumption Overall | 9.8 L/100km | 15.9 L/100km |
| Fuel Tank Capacity | 64 L | 100 L |
