2006 Cadillac XLR vs. 2008 Porsche 911
To start off, 2008 Porsche 911 is newer by 2 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 4,572 cc (8 cylinders), 2006 Cadillac XLR is equipped with a bigger engine. In terms of performance, 2008 Porsche 911 (405 HP @ 3500 RPM) has 85 more horse power than 2006 Cadillac XLR. (320 HP @ 6400 RPM) In normal driving conditions, 2008 Porsche 911 should accelerate faster than 2006 Cadillac XLR. With that said, vehicle weight also plays an important factor in acceleration. 2006 Cadillac XLR weights approximately 216 kg more than 2008 Porsche 911.
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 Porsche 911 (620 Nm @ 3500 RPM) has 200 more torque (in Nm) than 2006 Cadillac XLR. (420 Nm @ 4400 RPM). This means 2008 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 2006 Cadillac XLR.
Compare all specifications:
| 2006 Cadillac XLR | 2008 Porsche 911 | |
| Make | Cadillac | Porsche |
| Model | XLR | 911 |
| Year Released | 2006 | 2008 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 4572 cc | 3600 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 320 HP | 405 HP |
| Engine RPM | 6400 RPM | 3500 RPM |
| Torque | 420 Nm | 620 Nm |
| Torque RPM | 4400 RPM | 3500 RPM |
| Engine Bore Size | 93 mm | 100 mm |
| Engine Stroke Size | 84 mm | 76.4 mm |
| Engine Compression Ratio | 10.5:1 | 9.4:1 |
| Top Speed | 250 km/hour | 315 km/hour |
| Acceleration 0-100mph | 5.9 seconds | 4.1 seconds |
| Drive Type | Rear | Rear |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1656 kg | 1440 kg |
| Vehicle Length | 4520 mm | 4790 mm |
| Vehicle Height | 1290 mm | 1710 mm |
| Wheelbase Size | 2690 mm | 2360 mm |
| Fuel Consumption Overall | 12.4 L/100km | 9.1 L/100km |
| Fuel Tank Capacity | 68 L | 89 L |
