2003 BMW X5 vs. 2011 Audi A8
To start off, 2011 Audi A8 is newer by 8 year(s). Which means there will be less support and parts availability for 2003 BMW X5. In addition, the cost of maintenance, including insurance, on 2003 BMW X5 would be higher. At 4,398 cc (8 cylinders), 2003 BMW X5 is equipped with a bigger engine. In terms of performance, 2003 BMW X5 (338 HP @ 6100 RPM) has 91 more horse power than 2011 Audi A8. (247 HP @ 4000 RPM). In normal driving conditions, 2003 BMW X5 should accelerate faster than 2011 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, 2011 Audi A8 (550 Nm @ 1500 RPM) has 150 more torque (in Nm) than 2003 BMW X5. (400 Nm @ 3700 RPM). This means 2011 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2003 BMW X5.
Compare all specifications:
| 2003 BMW X5 | 2011 Audi A8 | |
| Make | BMW | Audi |
| Model | X5 | A8 |
| Year Released | 2003 | 2011 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 2967 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 338 HP | 247 HP |
| Engine RPM | 6100 RPM | 4000 RPM |
| Torque | 400 Nm | 550 Nm |
| Torque RPM | 3700 RPM | 1500 RPM |
| Top Speed | 240 km/hour | 243 km/hour |
| Acceleration 0-100mph | 7 seconds | 6.1 seconds |
| Drive Type | 4WD | AWD |
| Transmission Type | Automatic | 8-speed shiftable automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Length | 4670 mm | 5136 mm |
| Vehicle Width | 1880 mm | 1948 mm |
| Vehicle Height | 1720 mm | 1461 mm |
| Wheelbase Size | 2730 mm | 2992 mm |
| Fuel Tank Capacity | 93 L | 90 L |
