2004 Audi A8 vs. 2008 BMW X5
To start off, 2008 BMW X5 is newer by 4 year(s). Which means there will be less support and parts availability for 2004 Audi A8. In addition, the cost of maintenance, including insurance, on 2004 Audi A8 would be higher. At 3,697 cc (8 cylinders), 2004 Audi A8 is equipped with a bigger engine. With that said, vehicle weight also plays an important factor in acceleration. 2008 BMW X5 weights approximately 250 kg more than 2004 Audi A8.
Because 2004 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2008 BMW X5. In wet, icy, snow, or gravel driving conditions, 2004 Audi A8 will offer significantly more control. 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, 2004 Audi A8 (360 Nm @ 3750 RPM) has 60 more torque (in Nm) than 2008 BMW X5. (300 Nm @ 3500 RPM). This means 2004 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2008 BMW X5. 2004 Audi A8 has automatic transmission and 2008 BMW X5 has manual transmission. 2008 BMW X5 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2004 Audi A8 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2004 Audi A8 | 2008 BMW X5 | |
| Make | Audi | BMW |
| Model | A8 | X5 |
| Year Released | 2004 | 2008 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 3697 cc | 2977 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 276 HP | 0 HP |
| Torque | 360 Nm | 300 Nm |
| Torque RPM | 3750 RPM | 3500 RPM |
| Engine Bore Size | 84.6 mm | 84 mm |
| Engine Stroke Size | 82.4 mm | 89.6 mm |
| Engine Compression Ratio | 11.0:1 | 10.2:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1830 kg | 2080 kg |
| Vehicle Length | 5060 mm | 4870 mm |
| Vehicle Height | 1450 mm | 1470 mm |
| Wheelbase Size | 2850 mm | 2830 mm |
| Fuel Consumption Overall | 11.7 L/100km | 14.2 L/100km |
| Fuel Tank Capacity | 90 L | 85 L |
