2008 Audi S5 vs. 2005 BMW X5
To start off, 2008 Audi S5 is newer by 3 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 4,163 cc (8 cylinders), 2008 Audi S5 is equipped with a bigger engine. In terms of performance, 2008 Audi S5 (354 HP @ 6800 RPM) has 139 more horse power than 2005 BMW X5. (215 HP @ 4000 RPM). In normal driving conditions, 2008 Audi S5 should accelerate faster than 2005 BMW X5. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW X5 weights approximately 400 kg more than 2008 Audi S5.
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 79 more torque (in Nm) than 2008 Audi S5. (441 Nm @ 3500 RPM). This means 2005 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 2008 Audi S5.
Compare all specifications:
| 2008 Audi S5 | 2005 BMW X5 | |
| Make | Audi | BMW |
| Model | S5 | X5 |
| Year Released | 2008 | 2005 |
| Body Type | Coupe | SUV |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 2926 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 354 HP | 215 HP |
| Engine RPM | 6800 RPM | 4000 RPM |
| Torque | 441 Nm | 520 Nm |
| Torque RPM | 3500 RPM | 2000 RPM |
| Engine Bore Size | 84.5 mm | 84 mm |
| Engine Stroke Size | 92.8 mm | 90 mm |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 249 km/hour | 210 km/hour |
| Drive Type | 4WD | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1770 kg | 2170 kg |
| Vehicle Length | 4640 mm | 4670 mm |
| Vehicle Width | 1860 mm | 1880 mm |
| Vehicle Height | 1380 mm | 1720 mm |
| Wheelbase Size | 2760 mm | 2830 mm |
| Fuel Consumption Overall | 7.8 L/100km | 8.6 L/100km |
| Fuel Tank Capacity | 63 L | 93 L |
