2001 Audi A6 vs. 2008 BMW 645
To start off, 2008 BMW 645 is newer by 7 year(s). Which means there will be less support and parts availability for 2001 Audi A6. In addition, the cost of maintenance, including insurance, on 2001 Audi A6 would be higher. 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 112 more horse power than 2001 Audi A6. (216 HP @ 6300 RPM) In normal driving conditions, 2008 BMW 645 should accelerate faster than 2001 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2008 BMW 645 weights approximately 50 kg more than 2001 Audi A6. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2001 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 2008 BMW 645. In wet, icy, snow, or gravel driving conditions, 2001 Audi A6 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, 2008 BMW 645 (450 Nm @ 3600 RPM) has 149 more torque (in Nm) than 2001 Audi A6. (301 Nm @ 3200 RPM). This means 2008 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2001 Audi A6.
Compare all specifications:
| 2001 Audi A6 | 2008 BMW 645 | |
| Make | Audi | BMW |
| Model | A6 | 645 |
| Year Released | 2001 | 2008 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 3123 cc | 4398 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 216 HP | 328 HP |
| Engine RPM | 6300 RPM | 6100 RPM |
| Torque | 301 Nm | 450 Nm |
| Torque RPM | 3200 RPM | 3600 RPM |
| Engine Bore Size | 82.5 mm | 92.1 mm |
| Engine Stroke Size | 92.8 mm | 82.7 mm |
| Acceleration 0-100mph | 8.7 seconds | 5.6 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1640 kg | 1690 kg |
| Vehicle Length | 4800 mm | 4830 mm |
| Vehicle Width | 1820 mm | 1860 mm |
| Vehicle Height | 1460 mm | 1380 mm |
| Wheelbase Size | 2850 mm | 2790 mm |
| Fuel Consumption Overall | 11.3 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 70 L | 70 L |
