2005 Audi S8 vs. 2006 BMW 650
To start off, 2006 BMW 650 is newer by 1 year(s). Which means there will be less support and parts availability for 2005 Audi S8. In addition, the cost of maintenance, including insurance, on 2005 Audi S8 would be higher. At 4,800 cc (8 cylinders), 2006 BMW 650 is equipped with a bigger engine. In terms of performance, 2006 BMW 650 (360 HP @ 6300 RPM) has 113 more horse power than 2005 Audi S8. (247 HP @ 4000 RPM) In normal driving conditions, 2006 BMW 650 should accelerate faster than 2005 Audi S8. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S8 weights approximately 40 kg more than 2006 BMW 650.
Because 2005 Audi S8 is all wheel drive (AWD), it will have significant more traction and grip than 2006 BMW 650. In wet, icy, snow, or gravel driving conditions, 2005 Audi S8 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, 2006 BMW 650 (488 Nm @ 3400 RPM) has 38 more torque (in Nm) than 2005 Audi S8. (450 Nm @ 3400 RPM). This means 2006 BMW 650 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi S8.
Compare all specifications:
| 2005 Audi S8 | 2006 BMW 650 | |
| Make | Audi | BMW |
| Model | S8 | 650 |
| Year Released | 2005 | 2006 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 4800 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 247 HP | 360 HP |
| Engine RPM | 4000 RPM | 6300 RPM |
| Torque | 450 Nm | 488 Nm |
| Torque RPM | 3400 RPM | 3400 RPM |
| Drive Type | AWD | Rear |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1770 kg | 1730 kg |
| Wheelbase Size | 2290 mm | 2790 mm |
| Fuel Tank Capacity | 90 L | 70 L |
