2005 Cadillac XLR vs. 2008 Porsche 911
To start off, 2008 Porsche 911 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), 2005 Cadillac XLR is equipped with a bigger engine. In terms of performance, 2008 Porsche 911 (350 HP @ 6600 RPM) has 30 more horse power than 2005 Cadillac XLR. (320 HP @ 6000 RPM) In normal driving conditions, 2008 Porsche 911 should accelerate faster than 2005 Cadillac XLR. With that said, vehicle weight also plays an important factor in acceleration. 2005 Cadillac XLR weights approximately 119 kg more than 2008 Porsche 911.
Because 2008 Porsche 911 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Cadillac XLR. In wet, icy, snow, or gravel driving conditions, 2008 Porsche 911 will offer significantly more control. 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, both vehicles can yield 400 Nm of torque. So under normal driving conditions, the ability to climb up hills and pull heavy equipment should be relatively similar for both vehicles.
Compare all specifications:
| 2005 Cadillac XLR | 2008 Porsche 911 | |
| Make | Cadillac | Porsche |
| Model | XLR | 911 |
| Year Released | 2005 | 2008 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 4565 cc | 3824 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 320 HP | 350 HP |
| Engine RPM | 6000 RPM | 6600 RPM |
| Torque | 400 Nm | 400 Nm |
| Torque RPM | 4400 RPM | 4600 RPM |
| Engine Compression Ratio | 10.5:1 | 11.8:1 |
| Drive Type | Rear | 4WD |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1655 kg | 1536 kg |
| Vehicle Length | 4520 mm | 4430 mm |
| Vehicle Width | 1840 mm | 1860 mm |
| Vehicle Height | 1290 mm | 1310 mm |
| Wheelbase Size | 2690 mm | 2360 mm |
| Fuel Consumption Overall | 12.4 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 68 L | 67 L |
