2009 Cadillac STS vs. 2008 Rolls-Royce Phantom Drophead Coupe
To start off, 2009 Cadillac STS is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Rolls-Royce Phantom Drophead Coupe. In addition, the cost of maintenance, including insurance, on 2008 Rolls-Royce Phantom Drophead Coupe would be higher. At 6,749 cc (12 cylinders), 2008 Rolls-Royce Phantom Drophead Coupe is equipped with a bigger engine. In terms of performance, 2008 Rolls-Royce Phantom Drophead Coupe (448 HP @ 5350 RPM) has 146 more horse power than 2009 Cadillac STS. (302 HP @ 6300 RPM) In normal driving conditions, 2008 Rolls-Royce Phantom Drophead Coupe should accelerate faster than 2009 Cadillac STS. With that said, vehicle weight also plays an important factor in acceleration. 2008 Rolls-Royce Phantom Drophead Coupe weights approximately 1060 kg more than 2009 Cadillac STS. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2008 Rolls-Royce Phantom Drophead Coupe (531 Nm @ 3500 RPM) has 162 more torque (in Nm) than 2009 Cadillac STS. (369 Nm @ 5200 RPM). This means 2008 Rolls-Royce Phantom Drophead Coupe will have an easier job in driving up hills or pulling heavy equipment than 2009 Cadillac STS.
Compare all specifications:
| 2009 Cadillac STS | 2008 Rolls-Royce Phantom Drophead Coupe | |
| Make | Cadillac | Rolls-Royce |
| Model | STS | Phantom Drophead Coupe |
| Year Released | 2009 | 2008 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 3600 cc | 6749 cc |
| Engine Cylinders | 6 cylinders | 12 cylinders |
| Engine Type | V | V |
| Horse Power | 302 HP | 448 HP |
| Engine RPM | 6300 RPM | 5350 RPM |
| Torque | 369 Nm | 531 Nm |
| Torque RPM | 5200 RPM | 3500 RPM |
| Engine Compression Ratio | 3.7:1 | 11.1:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1560 kg | 2620 kg |
| Vehicle Length | 5000 mm | 5840 mm |
| Vehicle Height | 1470 mm | 1640 mm |
| Wheelbase Size | 2960 mm | 3580 mm |
| Fuel Consumption | 9.2 L/100km | 9.4 L/100km |
| Fuel Consumption City | 14 L/100km | 19.6 L/100km |
| Fuel Tank Capacity | 64 L | 100 L |
