2009 Cadillac STS vs. 2007 Cadillac XLR
To start off, 2009 Cadillac STS is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Cadillac XLR. In addition, the cost of maintenance, including insurance, on 2007 Cadillac XLR would be higher. At 4,565 cc (8 cylinders), 2007 Cadillac XLR is equipped with a bigger engine. In terms of performance, 2007 Cadillac XLR (320 HP @ 6400 RPM) has 18 more horse power than 2009 Cadillac STS. (302 HP @ 6300 RPM) In normal driving conditions, 2007 Cadillac XLR should accelerate faster than 2009 Cadillac STS. With that said, vehicle weight also plays an important factor in acceleration. 2007 Cadillac XLR weights approximately 20 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, 2007 Cadillac XLR (420 Nm @ 4400 RPM) has 51 more torque (in Nm) than 2009 Cadillac STS. (369 Nm @ 5200 RPM). This means 2007 Cadillac XLR will have an easier job in driving up hills or pulling heavy equipment than 2009 Cadillac STS.
Compare all specifications:
| 2009 Cadillac STS | 2007 Cadillac XLR | |
| Make | Cadillac | Cadillac |
| Model | STS | XLR |
| Year Released | 2009 | 2007 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 3599 cc | 4565 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 302 HP | 320 HP |
| Engine RPM | 6300 RPM | 6400 RPM |
| Torque | 369 Nm | 420 Nm |
| Torque RPM | 5200 RPM | 4400 RPM |
| Engine Compression Ratio | 11.3:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1635 kg | 1655 kg |
| Vehicle Length | 5000 mm | 4520 mm |
| Vehicle Width | 1850 mm | 1840 mm |
| Vehicle Height | 1470 mm | 1290 mm |
| Wheelbase Size | 2960 mm | 2690 mm |
| Fuel Consumption Overall | 11.8 L/100km | 11.9 L/100km |
| Fuel Tank Capacity | 64 L | 68 L |
