2008 Audi A8 vs. 2012 BMW X5
To start off, 2012 BMW X5 is newer by 4 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 4,400 cc (8 cylinders), 2012 BMW X5 is equipped with a bigger engine. In terms of performance, 2012 BMW X5 (400 HP @ 5500 RPM) has 170 more horse power than 2008 Audi A8. (230 HP @ 4000 RPM) In normal driving conditions, 2012 BMW X5 should accelerate faster than 2008 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2012 BMW X5 weights approximately 610 kg more than 2008 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, 2012 BMW X5 (609 Nm @ 1750 RPM) has 159 more torque (in Nm) than 2008 Audi A8. (450 Nm @ 1400 RPM). This means 2012 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 2008 Audi A8.
Compare all specifications:
| 2008 Audi A8 | 2012 BMW X5 | |
| Make | Audi | BMW |
| Model | A8 | X5 |
| Year Released | 2008 | 2012 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 2967 cc | 4400 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 230 HP | 400 HP |
| Engine RPM | 4000 RPM | 5500 RPM |
| Torque | 450 Nm | 609 Nm |
| Torque RPM | 1400 RPM | 1750 RPM |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | AWD |
| Transmission Type | Automatic | 8-speed shiftable automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1830 kg | 2440 kg |
| Vehicle Length | 5190 mm | 4854 mm |
| Vehicle Width | 1900 mm | 1933 mm |
| Vehicle Height | 1450 mm | 1775 mm |
| Wheelbase Size | 3080 mm | 2933 mm |
| Fuel Tank Capacity | 90 L | 85 L |
