2007 Audi A8 vs. 2005 BMW X5
To start off, 2007 Audi A8 is newer by 2 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 3,122 cc (6 cylinders), 2007 Audi A8 is equipped with a bigger engine. In terms of performance, 2007 Audi A8 (256 HP) has 41 more horse power than 2005 BMW X5. (215 HP). In normal driving conditions, 2007 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 560 kg more than 2007 Audi A8.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear wheel drive vehicles. 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 190 more torque (in Nm) than 2007 Audi A8. (330 Nm @ 3250 RPM). This means 2005 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi A8. 2007 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. 2007 Audi A8 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 Audi A8 | 2005 BMW X5 | |
| Make | Audi | BMW |
| Model | A8 | X5 |
| Year Released | 2007 | 2005 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 3122 cc | 2926 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 256 HP | 215 HP |
| Torque | 330 Nm | 520 Nm |
| Torque RPM | 3250 RPM | 2000 RPM |
| Engine Bore Size | 84.5 mm | 84 mm |
| Engine Stroke Size | 92.8 mm | 90 mm |
| Engine Compression Ratio | 13.0:1 | 18.0:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 250 km/hour | 210 km/hour |
| Acceleration 0-100mph | 7.7 seconds | 8.3 seconds |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1610 kg | 2170 kg |
| Vehicle Length | 5060 mm | 4670 mm |
| Vehicle Width | 1900 mm | 1880 mm |
| Vehicle Height | 1450 mm | 1720 mm |
| Wheelbase Size | 2950 mm | 2830 mm |
| Fuel Consumption Overall | 11 L/100km | 8.6 L/100km |
| Fuel Tank Capacity | 90 L | 93 L |
