2008 BMW 645 vs. 2008 Audi A6
To start off, both 2008 BMW 645 and 2008 Audi A6 were released in the same year (2008). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 4,398 cc (8 cylinders), 2008 BMW 645 is equipped with a bigger engine. In terms of performance, 2008 BMW 645 (328 HP @ 6100 RPM) has 76 more horse power than 2008 Audi A6. (252 HP @ 6500 RPM). In normal driving conditions, 2008 BMW 645 should accelerate faster than 2008 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2008 BMW 645 weights approximately 275 kg more than 2008 Audi A6. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 BMW 645 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 645. However, in wet, icy, snow, or gravel driving conditions, 2008 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 645 (450 Nm @ 3600 RPM) has 120 more torque (in Nm) than 2008 Audi A6. (330 Nm @ 3250 RPM). This means 2008 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2008 Audi A6.
Compare all specifications:
| 2008 BMW 645 | 2008 Audi A6 | |
| Make | BMW | Audi |
| Model | 645 | A6 |
| Year Released | 2008 | 2008 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 3122 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 328 HP | 252 HP |
| Engine RPM | 6100 RPM | 6500 RPM |
| Torque | 450 Nm | 330 Nm |
| Torque RPM | 3600 RPM | 3250 RPM |
| Engine Bore Size | 92 mm | 84.5 mm |
| Engine Stroke Size | 82.7 mm | 92.8 mm |
| Engine Compression Ratio | 10.0:1 | 13.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 250 km/hour | 250 km/hour |
| Acceleration 0-100mph | 6.4 seconds | 6.9 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1815 kg | 1540 kg |
| Vehicle Length | 4830 mm | 4920 mm |
| Vehicle Width | 1860 mm | 1860 mm |
| Vehicle Height | 1380 mm | 1470 mm |
| Wheelbase Size | 2790 mm | 2850 mm |
| Fuel Consumption Overall | 12.8 L/100km | 9.7 L/100km |
| Fuel Tank Capacity | 70 L | 70 L |
