2009 Audi A8 vs. 2011 BMW X5
To start off, 2011 BMW X5 is newer by 2 year(s). Which means there will be less support and parts availability for 2009 Audi A8. In addition, the cost of maintenance, including insurance, on 2009 Audi A8 would be higher. At 3,123 cc (6 cylinders), 2009 Audi A8 is equipped with a bigger engine. In terms of performance, 2011 BMW X5 (300 HP) has 44 more horse power than 2009 Audi A8. (256 HP) In normal driving conditions, 2011 BMW X5 should accelerate faster than 2009 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2011 BMW X5 weights approximately 1090 kg more than 2009 Audi A8. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2011 BMW X5 (406 Nm @ 1200 RPM) has 76 more torque (in Nm) than 2009 Audi A8. (330 Nm @ 3250 RPM). This means 2011 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A8.
Compare all specifications:
| 2009 Audi A8 | 2011 BMW X5 | |
| Make | Audi | BMW |
| Model | A8 | X5 |
| Year Released | 2009 | 2011 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 3123 cc | 3000 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 256 HP | 300 HP |
| Torque | 330 Nm | 406 Nm |
| Torque RPM | 3250 RPM | 1200 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | AWD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1160 kg | 2250 kg |
| Vehicle Length | 5060 mm | 4857 mm |
| Vehicle Width | 1900 mm | 1933 mm |
| Vehicle Height | 1450 mm | 1776 mm |
| Wheelbase Size | 2950 mm | 2934 mm |
| Fuel Tank Capacity | 90 L | 85 L |
