2005 Cadillac XLR vs. 2008 Cadillac STS
To start off, 2008 Cadillac STS is newer by 3 year(s). Which means there will be less support and parts availability for 2005 Cadillac XLR. In addition, the cost of maintenance, including insurance, on 2005 Cadillac XLR would be higher. At 4,565 cc (8 cylinders), 2008 Cadillac STS is equipped with a bigger engine. In terms of performance, 2005 Cadillac XLR (322 HP @ 6400 RPM) has 1 more horse power than 2008 Cadillac STS. (321 HP @ 6400 RPM). In normal driving conditions, 2005 Cadillac XLR should accelerate faster than 2008 Cadillac STS. With that said, vehicle weight also plays an important factor in acceleration. 2008 Cadillac STS weights approximately 158 kg more than 2005 Cadillac XLR.
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 Cadillac STS (427 Nm @ 4400 RPM) has 7 more torque (in Nm) than 2005 Cadillac XLR. (420 Nm @ 4000 RPM). This means 2008 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2005 Cadillac XLR.
Compare all specifications:
| 2005 Cadillac XLR | 2008 Cadillac STS | |
| Make | Cadillac | Cadillac |
| Model | XLR | STS |
| Year Released | 2005 | 2008 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4564 cc | 4565 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 322 HP | 321 HP |
| Engine RPM | 6400 RPM | 6400 RPM |
| Torque | 420 Nm | 427 Nm |
| Torque RPM | 4000 RPM | 4400 RPM |
| Engine Bore Size | 93 mm | 93 mm |
| Engine Stroke Size | 84 mm | 84 mm |
| Engine Compression Ratio | 11.0:1 | 10.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 250 km/hour | 250 km/hour |
| Acceleration 0-100mph | 5.9 seconds | 6.5 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1654 kg | 1812 kg |
| Vehicle Length | 4520 mm | 4990 mm |
| Vehicle Width | 1840 mm | 1850 mm |
| Vehicle Height | 1290 mm | 1470 mm |
| Wheelbase Size | 2690 mm | 2960 mm |
| Fuel Tank Capacity | 68 L | 66 L |
