2005 Audi A6 vs. 2008 BMW 650
To start off, 2008 BMW 650 is newer by 3 year(s). Which means there will be less support and parts availability for 2005 Audi A6. In addition, the cost of maintenance, including insurance, on 2005 Audi A6 would be higher. At 4,799 cc (8 cylinders), 2008 BMW 650 is equipped with a bigger engine. In terms of performance, 2008 BMW 650 (360 HP @ 6300 RPM) has 198 more horse power than 2005 Audi A6. (162 HP @ 4000 RPM) In normal driving conditions, 2008 BMW 650 should accelerate faster than 2005 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2008 BMW 650 weights approximately 50 kg more than 2005 Audi A6. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 BMW 650 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2008 BMW 650. However, in wet, icy, snow, or gravel driving conditions, 2005 Audi A6, being front wheel drive (FWD), will offer much better control with better grip. 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, 2008 BMW 650 (490 Nm @ 3400 RPM) has 180 more torque (in Nm) than 2005 Audi A6. (310 Nm @ 1400 RPM). This means 2008 BMW 650 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A6.
Compare all specifications:
| 2005 Audi A6 | 2008 BMW 650 | |
| Make | Audi | BMW |
| Model | A6 | 650 |
| Year Released | 2005 | 2008 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2496 cc | 4799 cc |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 162 HP | 360 HP |
| Engine RPM | 4000 RPM | 6300 RPM |
| Torque | 310 Nm | 490 Nm |
| Torque RPM | 1400 RPM | 3400 RPM |
| Engine Bore Size | 78.3 mm | 92.1 mm |
| Engine Stroke Size | 86.4 mm | 82.7 mm |
| Fuel Type | Diesel | Gasoline |
| Acceleration 0-100mph | 9.3 seconds | 5.5 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1590 kg | 1640 kg |
| Wheelbase Size | 2770 mm | 2790 mm |
| Fuel Consumption Overall | 6.9 L/100km | 12.4 L/100km |
| Fuel Tank Capacity | 70 L | 70 L |
