2008 Audi A8 vs. 2013 BMW X5
To start off, 2013 BMW X5 is newer by 5 year(s). Which means there will be less support and parts availability for 2008 Audi A8. In addition, the cost of maintenance, including insurance, on 2008 Audi A8 would be higher. At 3,934 cc (8 cylinders), 2008 Audi A8 is equipped with a bigger engine. In terms of performance, 2008 Audi A8 (271 HP @ 3750 RPM) has 10 more horse power than 2013 BMW X5. (261 HP @ 4200 RPM). In normal driving conditions, 2008 Audi A8 should accelerate faster than 2013 BMW X5. With that said, vehicle weight also plays an important factor in acceleration. 2013 BMW X5 weights approximately 415 kg more than 2008 Audi A8.
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 Audi A8 (650 Nm @ 1800 RPM) has 74 more torque (in Nm) than 2013 BMW X5. (576 Nm @ 2250 RPM). This means 2008 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2013 BMW X5.
Compare all specifications:
| 2008 Audi A8 | 2013 BMW X5 | |
| Make | Audi | BMW |
| Model | A8 | X5 |
| Year Released | 2008 | 2013 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 3934 cc | 2993 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 271 HP | 261 HP |
| Engine RPM | 3750 RPM | 4200 RPM |
| Torque | 650 Nm | 576 Nm |
| Torque RPM | 1800 RPM | 2250 RPM |
| Engine Bore Size | 81 mm | 84 mm |
| Engine Stroke Size | 95.5 mm | 90 mm |
| Engine Compression Ratio | 18.0:1 | 17 |
| Fuel Type | Diesel | Diesel |
| Drive Type | 4WD | AWD |
| Transmission Type | Automatic | 6-speed automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1940 kg | 2355 kg |
| Vehicle Length | 5060 mm | 4857 mm |
| Vehicle Width | 1900 mm | 2197 mm |
| Vehicle Height | 1450 mm | 1776 mm |
| Wheelbase Size | 2950 mm | 2933 mm |
| Fuel Tank Capacity | 90 L | 85 L |
