2006 Cadillac STS vs. 2009 Rolls-Royce Phantom
To start off, 2009 Rolls-Royce Phantom is newer by 3 year(s). Which means there will be less support and parts availability for 2006 Cadillac STS. In addition, the cost of maintenance, including insurance, on 2006 Cadillac STS would be higher. At 6,749 cc (12 cylinders), 2009 Rolls-Royce Phantom is equipped with a bigger engine. In terms of performance, 2009 Rolls-Royce Phantom (448 HP @ 5350 RPM) has 127 more horse power than 2006 Cadillac STS. (321 HP @ 6400 RPM) In normal driving conditions, 2009 Rolls-Royce Phantom should accelerate faster than 2006 Cadillac STS.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 2009 Rolls-Royce Phantom (531 Nm @ 3500 RPM) has 104 more torque (in Nm) than 2006 Cadillac STS. (427 Nm @ 4400 RPM). This means 2009 Rolls-Royce Phantom will have an easier job in driving up hills or pulling heavy equipment than 2006 Cadillac STS.
Compare all specifications:
| 2006 Cadillac STS | 2009 Rolls-Royce Phantom | |
| Make | Cadillac | Rolls-Royce |
| Model | STS | Phantom |
| Year Released | 2006 | 2009 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4565 cc | 6749 cc |
| Engine Cylinders | 8 cylinders | 12 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 321 HP | 448 HP |
| Engine RPM | 6400 RPM | 5350 RPM |
| Torque | 427 Nm | 531 Nm |
| Torque RPM | 4400 RPM | 3500 RPM |
| Engine Bore Size | 93 mm | 92 mm |
| Engine Stroke Size | 84 mm | 84.6 mm |
| Engine Compression Ratio | 10.5:1 | 11.1:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 250 km/hour | 239 km/hour |
| Acceleration 0-100mph | 6.2 seconds | 5.9 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 4990 mm | 5840 mm |
| Vehicle Width | 1850 mm | 2000 mm |
| Vehicle Height | 1470 mm | 1640 mm |
| Wheelbase Size | 2960 mm | 3580 mm |
| Fuel Consumption | 9.1 L/100km | 9.6 L/100km |
| Fuel Consumption City | 13.8 L/100km | 19.8 L/100km |
| Fuel Consumption Overall | 14.5 L/100km | 16.1 L/100km |
| Fuel Tank Capacity | 66 L | 100 L |
