2005 BMW X5 vs. 2010 Audi A8
To start off, 2010 Audi A8 is newer by 5 year(s). Which means there will be less support and parts availability for 2005 BMW X5. In addition, the cost of maintenance, including insurance, on 2005 BMW X5 would be higher. At 4,200 cc (8 cylinders), 2010 Audi A8 is equipped with a bigger engine. In terms of performance, 2010 Audi A8 (350 HP @ 6800 RPM) has 135 more horse power than 2005 BMW X5. (215 HP @ 4000 RPM) In normal driving conditions, 2010 Audi A8 should accelerate faster than 2005 BMW X5. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW X5 weights approximately 170 kg more than 2010 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, 2005 BMW X5 (520 Nm @ 2000 RPM) has 80 more torque (in Nm) than 2010 Audi A8. (440 Nm @ 3500 RPM). This means 2005 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 2010 Audi A8. 2010 Audi A8 has automatic transmission and 2005 BMW X5 has manual transmission. 2005 BMW X5 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2010 Audi A8 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 BMW X5 | 2010 Audi A8 | |
| Make | BMW | Audi |
| Model | X5 | A8 |
| Year Released | 2005 | 2010 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2926 cc | 4200 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 215 HP | 350 HP |
| Engine RPM | 4000 RPM | 6800 RPM |
| Torque | 520 Nm | 440 Nm |
| Torque RPM | 2000 RPM | 3500 RPM |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | AWD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 2170 kg | 2000 kg |
| Vehicle Length | 4670 mm | 5192 mm |
| Vehicle Width | 1880 mm | 1895 mm |
| Vehicle Height | 1720 mm | 1455 mm |
| Wheelbase Size | 2830 mm | 3073 mm |
| Fuel Tank Capacity | 93 L | 90 L |
