2007 Audi A4 vs. 2008 BMW 550
To start off, 2008 BMW 550 is newer by 1 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 4,799 cc, 2008 BMW 550 is equipped with a bigger engine. In terms of performance, 2008 BMW 550 (360 HP @ 6300 RPM) has 159 more horse power than 2007 Audi A4. (201 HP @ 4500 RPM) In normal driving conditions, 2008 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 45 kg more than 2008 BMW 550.
Because 2007 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2008 BMW 550. In wet, icy, snow, or gravel driving conditions, 2007 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 550 (490 Nm @ 3400 RPM) has 40 more torque (in Nm) than 2007 Audi A4. (450 Nm @ 1400 RPM). This means 2008 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 | 2008 BMW 550 | |
| Make | Audi | BMW |
| Model | A4 | 550 |
| Year Released | 2007 | 2008 |
| Engine Position | Front | Front |
| Engine Size | 2967 cc | 4799 cc |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 201 HP | 360 HP |
| Engine RPM | 4500 RPM | 6300 RPM |
| Torque | 450 Nm | 490 Nm |
| Torque RPM | 1400 RPM | 3400 RPM |
| Engine Compression Ratio | 17.0:1 | 10.5:1 |
| Fuel Type | Diesel | Gasoline |
| Top Speed | 226 km/hour | 250 km/hour |
| Acceleration 0-100mph | 7.9 seconds | 5.9 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1705 kg | 1660 kg |
| Vehicle Length | 4590 mm | 4870 mm |
| Vehicle Height | 1430 mm | 1470 mm |
| Wheelbase Size | 2650 mm | 2890 mm |
| Fuel Consumption Overall | 8.3 L/100km | 11.1 L/100km |
| Fuel Tank Capacity | 66 L | 70 L |
