2009 BMW 635 vs. 2007 Audi A6
To start off, 2009 BMW 635 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Audi A6. In addition, the cost of maintenance, including insurance, on 2007 Audi A6 would be higher. At 3,123 cc (6 cylinders), 2007 Audi A6 is equipped with a bigger engine. In terms of performance, 2009 BMW 635 (282 HP @ 4400 RPM) has 30 more horse power than 2007 Audi A6. (252 HP @ 6500 RPM). In normal driving conditions, 2009 BMW 635 should accelerate faster than 2007 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW 635 weights approximately 45 kg more than 2007 Audi A6. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 2009 BMW 635. In wet, icy, snow, or gravel driving conditions, 2007 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, 2009 BMW 635 (581 Nm @ 1750 RPM) has 251 more torque (in Nm) than 2007 Audi A6. (330 Nm @ 3250 RPM). This means 2009 BMW 635 will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi A6.
Compare all specifications:
| 2009 BMW 635 | 2007 Audi A6 | |
| Make | BMW | Audi |
| Model | 635 | A6 |
| Year Released | 2009 | 2007 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 3123 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 282 HP | 252 HP |
| Engine RPM | 4400 RPM | 6500 RPM |
| Torque | 581 Nm | 330 Nm |
| Torque RPM | 1750 RPM | 3250 RPM |
| Engine Bore Size | 84 mm | 84.6 mm |
| Engine Stroke Size | 90 mm | 92.8 mm |
| Fuel Type | Diesel | Gasoline - Premium |
| Acceleration 0-100mph | 6.3 seconds | 7.1 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1725 kg | 1680 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 | 7.2 L/100km | 10.9 L/100km |
| Fuel Tank Capacity | 70 L | 80 L |
