2006 Cadillac STS vs. 1999 Rolls-Royce Corniche
To start off, 2006 Cadillac STS is newer by 7 year(s). Which means there will be less support and parts availability for 1999 Rolls-Royce Corniche. In addition, the cost of maintenance, including insurance, on 1999 Rolls-Royce Corniche would be higher. At 6,750 cc (8 cylinders), 1999 Rolls-Royce Corniche is equipped with a bigger engine. In terms of performance, 1999 Rolls-Royce Corniche (325 HP @ 4000 RPM) has 72 more horse power than 2006 Cadillac STS. (253 HP @ 6500 RPM) In normal driving conditions, 1999 Rolls-Royce Corniche should accelerate faster than 2006 Cadillac STS. With that said, vehicle weight also plays an important factor in acceleration. 1999 Rolls-Royce Corniche weights approximately 953 kg more than 2006 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, 1999 Rolls-Royce Corniche (738 Nm @ 2100 RPM) has 396 more torque (in Nm) than 2006 Cadillac STS. (342 Nm @ 3200 RPM). This means 1999 Rolls-Royce Corniche will have an easier job in driving up hills or pulling heavy equipment than 2006 Cadillac STS.
Compare all specifications:
| 2006 Cadillac STS | 1999 Rolls-Royce Corniche | |
| Make | Cadillac | Rolls-Royce |
| Model | STS | Corniche |
| Year Released | 2006 | 1999 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 3563 cc | 6750 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 253 HP | 325 HP |
| Engine RPM | 6500 RPM | 4000 RPM |
| Torque | 342 Nm | 738 Nm |
| Torque RPM | 3200 RPM | 2100 RPM |
| Engine Bore Size | 94 mm | 104.1 mm |
| Engine Stroke Size | 85.6 mm | 99.1 mm |
| Top Speed | 229 km/hour | 217 km/hour |
| Acceleration 0-100mph | 7.4 seconds | 8.5 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1782 kg | 2735 kg |
| Vehicle Length | 4990 mm | 5410 mm |
| Vehicle Height | 1470 mm | 1480 mm |
| Wheelbase Size | 2960 mm | 3070 mm |
| Fuel Tank Capacity | 66 L | 100 L |
