1999 Audi A4 vs. 2006 BMW 550
To start off, 2006 BMW 550 is newer by 7 year(s). Which means there will be less support and parts availability for 1999 Audi A4. In addition, the cost of maintenance, including insurance, on 1999 Audi A4 would be higher. At 4,799 cc (8 cylinders), 2006 BMW 550 is equipped with a bigger engine. In terms of performance, 2006 BMW 550 (360 HP @ 6300 RPM) has 112 more horse power than 1999 Audi A4. (248 HP @ 4150 RPM) In normal driving conditions, 2006 BMW 550 should accelerate faster than 1999 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 550 weights approximately 295 kg more than 1999 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1999 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2006 BMW 550. In wet, icy, snow, or gravel driving conditions, 1999 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, 2006 BMW 550 (488 Nm @ 3400 RPM) has 149 more torque (in Nm) than 1999 Audi A4. (339 Nm @ 1900 RPM). This means 2006 BMW 550 will have an easier job in driving up hills or pulling heavy equipment than 1999 Audi A4.
Compare all specifications:
| 1999 Audi A4 | 2006 BMW 550 | |
| Make | Audi | BMW |
| Model | A4 | 550 |
| Year Released | 1999 | 2006 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1896 cc | 4799 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 248 HP | 360 HP |
| Engine RPM | 4150 RPM | 6300 RPM |
| Torque | 339 Nm | 488 Nm |
| Torque RPM | 1900 RPM | 3400 RPM |
| Engine Bore Size | 79.5 mm | 93.1 mm |
| Engine Stroke Size | 95.5 mm | 88.4 mm |
| Engine Compression Ratio | 19.5:1 | 10.5:1 |
| Fuel Type | Diesel | Gasoline |
| Acceleration 0-100mph | 11.9 seconds | 5.5 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1430 kg | 1725 kg |
| Vehicle Length | 4480 mm | 4880 mm |
| Vehicle Width | 1740 mm | 1850 mm |
| Vehicle Height | 1420 mm | 1470 mm |
| Wheelbase Size | 2610 mm | 2890 mm |
| Fuel Tank Capacity | 60 L | 70 L |
