2006 Cadillac XLR vs. 2009 Cadillac STS
To start off, 2009 Cadillac STS is newer by 3 year(s). Which means there will be less support and parts availability for 2006 Cadillac XLR. In addition, the cost of maintenance, including insurance, on 2006 Cadillac XLR would be higher. At 4,563 cc (8 cylinders), 2006 Cadillac XLR is equipped with a bigger engine. In terms of performance, 2006 Cadillac XLR (322 HP @ 6400 RPM) has 20 more horse power than 2009 Cadillac STS. (302 HP @ 6300 RPM). In normal driving conditions, 2006 Cadillac XLR should accelerate faster than 2009 Cadillac STS. With that said, vehicle weight also plays an important factor in acceleration. 2006 Cadillac XLR weights approximately 19 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, 2006 Cadillac XLR (423 Nm @ 4400 RPM) has 54 more torque (in Nm) than 2009 Cadillac STS. (369 Nm @ 5200 RPM). This means 2006 Cadillac XLR will have an easier job in driving up hills or pulling heavy equipment than 2009 Cadillac STS.
Compare all specifications:
| 2006 Cadillac XLR | 2009 Cadillac STS | |
| Make | Cadillac | Cadillac |
| Model | XLR | STS |
| Year Released | 2006 | 2009 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4563 cc | 3599 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 322 HP | 302 HP |
| Engine RPM | 6400 RPM | 6300 RPM |
| Torque | 423 Nm | 369 Nm |
| Torque RPM | 4400 RPM | 5200 RPM |
| Engine Compression Ratio | 10.5:1 | 11.3:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| 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 | 1635 kg |
| Vehicle Length | 4520 mm | 5000 mm |
| Vehicle Width | 1840 mm | 1850 mm |
| Vehicle Height | 1290 mm | 1470 mm |
| Wheelbase Size | 2690 mm | 2960 mm |
| Fuel Consumption Overall | 12.3 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 68 L | 64 L |
