2008 BMW 635 vs. 2009 Audi A4
To start off, 2009 Audi A4 is newer by 1 year(s). Which means there will be less support and parts availability for 2008 BMW 635. In addition, the cost of maintenance, including insurance, on 2008 BMW 635 would be higher. At 2,993 cc (6 cylinders), 2008 BMW 635 is equipped with a bigger engine. In terms of performance, 2008 BMW 635 (282 HP @ 4400 RPM) has 52 more horse power than 2009 Audi A4. (230 HP @ 4000 RPM). In normal driving conditions, 2008 BMW 635 should accelerate faster than 2009 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A4 weights approximately 69 kg more than 2008 BMW 635.
Because 2009 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2008 BMW 635. In wet, icy, snow, or gravel driving conditions, 2009 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, 2008 BMW 635 (581 Nm @ 1750 RPM) has 131 more torque (in Nm) than 2009 Audi A4. (450 Nm @ 1400 RPM). This means 2008 BMW 635 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A4.
Compare all specifications:
| 2008 BMW 635 | 2009 Audi A4 | |
| Make | BMW | Audi |
| Model | 635 | A4 |
| Year Released | 2008 | 2009 |
| Body Type | Coupe | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 2967 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 282 HP | 230 HP |
| Engine RPM | 4400 RPM | 4000 RPM |
| Torque | 581 Nm | 450 Nm |
| Torque RPM | 1750 RPM | 1400 RPM |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 250 km/hour | 242 km/hour |
| Acceleration 0-100mph | 6.3 seconds | 7.3 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1725 kg | 1794 kg |
| Vehicle Length | 4830 mm | 4580 mm |
| Vehicle Width | 1860 mm | 1780 mm |
| Vehicle Height | 1380 mm | 1400 mm |
| Wheelbase Size | 2790 mm | 2660 mm |
| Fuel Consumption Overall | 7.2 L/100km | 8 L/100km |
| Fuel Tank Capacity | 70 L | 63 L |
