1999 Audi RS4 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 RS4. In addition, the cost of maintenance, including insurance, on 1999 Audi RS4 would be higher. At 4,801 cc (8 cylinders), 2006 BMW 550 is equipped with a bigger engine. In terms of performance, 2006 BMW 550 (360 HP @ 6300 RPM) has 110 more horse power than 1999 Audi RS4. (250 HP @ 6100 RPM) In normal driving conditions, 2006 BMW 550 should accelerate faster than 1999 Audi RS4.
Because 1999 Audi RS4 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 RS4 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.
Compare all specifications:
| 1999 Audi RS4 | 2006 BMW 550 | |
| Make | Audi | BMW |
| Model | RS4 | 550 |
| Year Released | 1999 | 2006 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2671 cc | 4801 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 250 HP | 360 HP |
| Engine RPM | 6100 RPM | 6300 RPM |
| Engine Bore Size | 81.1 mm | 93 mm |
| Engine Stroke Size | 86.4 mm | 88.3 mm |
| Engine Compression Ratio | 9.0:1 | 11.0:1 |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Length | 4530 mm | 4860 mm |
| Vehicle Width | 1810 mm | 1850 mm |
| Vehicle Height | 1390 mm | 1470 mm |
| Wheelbase Size | 2610 mm | 2890 mm |
| Fuel Tank Capacity | 62 L | 70 L |
