2007 Cadillac XLR vs. 2009 Porsche 911
To start off, 2009 Porsche 911 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 4 more horse power than 2009 Porsche 911. (316 HP @ 6800 RPM). In normal driving conditions, 2007 Cadillac XLR should accelerate faster than 2009 Porsche 911. With that said, vehicle weight also plays an important factor in acceleration. 2007 Cadillac XLR weights approximately 359 kg more than 2009 Porsche 911. 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 50 more torque (in Nm) than 2009 Porsche 911. (370 Nm @ 4250 RPM). This means 2007 Cadillac XLR will have an easier job in driving up hills or pulling heavy equipment than 2009 Porsche 911. 2007 Cadillac XLR has automatic transmission and 2009 Porsche 911 has manual transmission. 2009 Porsche 911 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Cadillac XLR will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 Cadillac XLR | 2009 Porsche 911 | |
| Make | Cadillac | Porsche |
| Model | XLR | 911 |
| Year Released | 2007 | 2009 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 4565 cc | 3596 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 320 HP | 316 HP |
| Engine RPM | 6400 RPM | 6800 RPM |
| Torque | 420 Nm | 370 Nm |
| Torque RPM | 4400 RPM | 4250 RPM |
| Engine Bore Size | 93.1 mm | 96 mm |
| Engine Stroke Size | 84.1 mm | 82.8 mm |
| Engine Compression Ratio | 10.5:1 | 11.3:1 |
| Fuel Type | Gasoline | Gasoline |
| Acceleration 0-100mph | 5.9 seconds | 5.2 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1654 kg | 1295 kg |
| Vehicle Length | 4520 mm | 4440 mm |
| Vehicle Width | 1840 mm | 1310 mm |
| Vehicle Height | 1290 mm | 1780 mm |
| Wheelbase Size | 2690 mm | 2360 mm |
| Fuel Consumption Overall | 12.3 L/100km | 10.1 L/100km |
| Fuel Tank Capacity | 68 L | 64 L |
