2007 Audi S4 vs. 2006 BMW X5
To start off, 2007 Audi S4 is newer by 1 year(s). Which means there will be less support and parts availability for 2006 BMW X5. In addition, the cost of maintenance, including insurance, on 2006 BMW X5 would be higher. At 4,163 cc (8 cylinders), 2007 Audi S4 is equipped with a bigger engine. In terms of performance, 2007 Audi S4 (341 HP @ 7000 RPM) has 113 more horse power than 2006 BMW X5. (228 HP @ 3500 RPM). In normal driving conditions, 2007 Audi S4 should accelerate faster than 2006 BMW X5.
Let's talk about torque, 2007 Audi S4 (410 Nm @ 3500 RPM) has 110 more torque (in Nm) than 2006 BMW X5. (300 Nm @ 3500 RPM). This means 2007 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW X5.
Compare all specifications:
| 2007 Audi S4 | 2006 BMW X5 | |
| Make | Audi | BMW |
| Model | S4 | X5 |
| Year Released | 2007 | 2006 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 2979 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 341 HP | 228 HP |
| Engine RPM | 7000 RPM | 3500 RPM |
| Torque | 410 Nm | 300 Nm |
| Torque RPM | 3500 RPM | 3500 RPM |
| Engine Bore Size | 84.6 mm | 84 mm |
| Engine Stroke Size | 92.7 mm | 89.6 mm |
| Engine Compression Ratio | 11.0:1 | 10.2:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 249 km/hour | 202 km/hour |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Length | 4590 mm | 4670 mm |
| Vehicle Width | 1730 mm | 1880 mm |
| Vehicle Height | 1430 mm | 1720 mm |
| Wheelbase Size | 2650 mm | 2830 mm |
| Fuel Tank Capacity | 63 L | 93 L |
