2009 BMW 635 vs. 2011 Audi A4
To start off, 2011 Audi A4 is newer by 2 year(s). Which means there will be less support and parts availability for 2009 BMW 635. In addition, the cost of maintenance, including insurance, on 2009 BMW 635 would be higher. At 2,993 cc (6 cylinders), 2009 BMW 635 is equipped with a bigger engine. In terms of performance, 2009 BMW 635 (282 HP @ 4400 RPM) has 71 more horse power than 2011 Audi A4. (211 HP @ 4300 RPM). In normal driving conditions, 2009 BMW 635 should accelerate faster than 2011 Audi A4.
Because 2011 Audi A4 is all wheel drive (AWD), it will have significant more traction and grip than 2009 BMW 635. In wet, icy, snow, or gravel driving conditions, 2011 Audi A4 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 (580 Nm @ 1750 RPM) has 231 more torque (in Nm) than 2011 Audi A4. (349 Nm @ 1500 RPM). This means 2009 BMW 635 will have an easier job in driving up hills or pulling heavy equipment than 2011 Audi A4.
Compare all specifications:
| 2009 BMW 635 | 2011 Audi A4 | |
| Make | BMW | Audi |
| Model | 635 | A4 |
| Year Released | 2009 | 2011 |
| Body Type | Convertible | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 2000 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 282 HP | 211 HP |
| Engine RPM | 4400 RPM | 4300 RPM |
| Torque | 580 Nm | 349 Nm |
| Torque RPM | 1750 RPM | 1500 RPM |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Rear | AWD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Length | 4830 mm | 4704 mm |
| Vehicle Width | 1860 mm | 1829 mm |
| Vehicle Height | 1380 mm | 1435 mm |
| Wheelbase Size | 2790 mm | 2809 mm |
| Fuel Tank Capacity | 70 L | 65 L |
