2007 Audi S6 vs. 2003 BMW X5
To start off, 2007 Audi S6 is newer by 4 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 5,204 cc (10 cylinders), 2007 Audi S6 is equipped with a bigger engine. In terms of performance, 2007 Audi S6 (435 HP @ 6800 RPM) has 208 more horse power than 2003 BMW X5. (227 HP @ 6100 RPM). In normal driving conditions, 2007 Audi S6 should accelerate faster than 2003 BMW X5. With that said, vehicle weight also plays an important factor in acceleration. 2003 BMW X5 weights approximately 310 kg more than 2007 Audi S6.
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, 2007 Audi S6 (540 Nm @ 3000 RPM) has 240 more torque (in Nm) than 2003 BMW X5. (300 Nm @ 3500 RPM). This means 2007 Audi S6 will have an easier job in driving up hills or pulling heavy equipment than 2003 BMW X5. 2007 Audi S6 has automatic transmission and 2003 BMW X5 has manual transmission. 2003 BMW X5 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Audi S6 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 Audi S6 | 2003 BMW X5 | |
| Make | Audi | BMW |
| Model | S6 | X5 |
| Year Released | 2007 | 2003 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 5204 cc | 2993 cc |
| Engine Cylinders | 10 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 435 HP | 227 HP |
| Engine RPM | 6800 RPM | 6100 RPM |
| Torque | 540 Nm | 300 Nm |
| Torque RPM | 3000 RPM | 3500 RPM |
| Engine Bore Size | 84.5 mm | 84.1 mm |
| Engine Stroke Size | 92.8 mm | 89.6 mm |
| Engine Compression Ratio | 17.0:1 | 10.2:1 |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1760 kg | 2070 kg |
| Vehicle Length | 4920 mm | 4670 mm |
| Vehicle Width | 2020 mm | 1880 mm |
| Vehicle Height | 1450 mm | 1720 mm |
| Wheelbase Size | 2850 mm | 2890 mm |
| Fuel Tank Capacity | 80 L | 93 L |
