2007 Audi A4 vs. 2009 BMW 550
To start off, 2009 BMW 550 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Audi A4. In addition, the cost of maintenance, including insurance, on 2007 Audi A4 would be higher. At 3,123 cc (6 cylinders), 2007 Audi A4 is equipped with a bigger engine. In terms of performance, 2009 BMW 550 (362 HP @ 6300 RPM) has 107 more horse power than 2007 Audi A4. (255 HP @ 6500 RPM) In normal driving conditions, 2009 BMW 550 should accelerate faster than 2007 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi A4 weights approximately 220 kg more than 2009 BMW 550.
Because 2009 BMW 550 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 2009 BMW 550. However, in wet, icy, snow, or gravel driving conditions, 2007 Audi A4, 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, 2009 BMW 550 (490 Nm @ 3400 RPM) has 160 more torque (in Nm) than 2007 Audi A4. (330 Nm @ 3250 RPM). This means 2009 BMW 550 will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi A4.
Compare all specifications:
| 2007 Audi A4 | 2009 BMW 550 | |
| Make | Audi | BMW |
| Model | A4 | 550 |
| Year Released | 2007 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 3123 cc | 2495 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 255 HP | 362 HP |
| Engine RPM | 6500 RPM | 6300 RPM |
| Torque | 330 Nm | 490 Nm |
| Torque RPM | 3250 RPM | 3400 RPM |
| Engine Compression Ratio | 11.3:1 | 10.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 250 km/hour | 235 km/hour |
| Drive Type | Front | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1880 kg | 1660 kg |
| Vehicle Length | 4590 mm | 4850 mm |
| Vehicle Width | 1780 mm | 1490 mm |
| Vehicle Height | 1430 mm | 1850 mm |
| Wheelbase Size | 2660 mm | 2890 mm |
| Fuel Consumption Overall | 10 L/100km | 11.1 L/100km |
| Fuel Tank Capacity | 70 L | 70 L |
