2005 Audi A8 vs. 2003 BMW X5
To start off, 2005 Audi A8 is newer by 2 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 4,178 cc (8 cylinders), 2005 Audi A8 is equipped with a bigger engine. In terms of performance, 2005 Audi A8 (335 HP @ 4000 RPM) has 120 more horse power than 2003 BMW X5. (215 HP @ 4000 RPM). In normal driving conditions, 2005 Audi A8 should accelerate faster than 2003 BMW X5. With that said, vehicle weight also plays an important factor in acceleration. 2003 BMW X5 weights approximately 235 kg more than 2005 Audi A8.
Let's talk about torque, 2003 BMW X5 (500 Nm) has 70 more torque (in Nm) than 2005 Audi A8. (430 Nm). This means 2003 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A8.
Compare all specifications:
| 2005 Audi A8 | 2003 BMW X5 | |
| Make | Audi | BMW |
| Model | A8 | X5 |
| Year Released | 2005 | 2003 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 4178 cc | 2983 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 335 HP | 215 HP |
| Engine RPM | 4000 RPM | 4000 RPM |
| Torque | 430 Nm | 500 Nm |
| Engine Compression Ratio | 11.0:1 | 18.0:1 |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1945 kg | 2180 kg |
| Vehicle Length | 5060 mm | 4670 mm |
| Vehicle Width | 1900 mm | 1880 mm |
| Vehicle Height | 1450 mm | 1720 mm |
| Wheelbase Size | 2950 mm | 2840 mm |
| Fuel Consumption Highway | 9.8 L/100km | 8 L/100km |
| Fuel Consumption City | 13.1 L/100km | 12 L/100km |
| Fuel Consumption Overall | 11.8 L/100km | 9.4 L/100km |
| Fuel Tank Capacity | 90 L | 93 L |
