2006 Audi RS4 vs. 1999 BMW 730
To start off, 2006 Audi RS4 is newer by 7 year(s). Which means there will be less support and parts availability for 1999 BMW 730. In addition, the cost of maintenance, including insurance, on 1999 BMW 730 would be higher. At 4,163 cc (8 cylinders), 2006 Audi RS4 is equipped with a bigger engine. In terms of performance, 2006 Audi RS4 (415 HP @ 7800 RPM) has 225 more horse power than 1999 BMW 730. (190 HP @ 5300 RPM). In normal driving conditions, 2006 Audi RS4 should accelerate faster than 1999 BMW 730. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi RS4 weights approximately 99 kg more than 1999 BMW 730. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 Audi RS4 is four wheel drive (4WD), it will have significant more traction and grip than 1999 BMW 730. In wet, icy, snow, or gravel driving conditions, 2006 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. Let's talk about torque, 2006 Audi RS4 (430 Nm @ 5500 RPM) has 150 more torque (in Nm) than 1999 BMW 730. (280 Nm @ 3950 RPM). This means 2006 Audi RS4 will have an easier job in driving up hills or pulling heavy equipment than 1999 BMW 730.
Compare all specifications:
| 2006 Audi RS4 | 1999 BMW 730 | |
| Make | Audi | BMW |
| Model | RS4 | 730 |
| Year Released | 2006 | 1999 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 2793 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 415 HP | 190 HP |
| Engine RPM | 7800 RPM | 5300 RPM |
| Torque | 430 Nm | 280 Nm |
| Torque RPM | 5500 RPM | 3950 RPM |
| Engine Bore Size | 84.5 mm | 84 mm |
| Engine Stroke Size | 92.8 mm | 84 mm |
| Engine Compression Ratio | 12.5:1 | 10.2:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1845 kg | 1746 kg |
| Vehicle Length | 4560 mm | 5130 mm |
| Vehicle Width | 1820 mm | 1870 mm |
| Vehicle Height | 1400 mm | 1430 mm |
| Wheelbase Size | 2660 mm | 2940 mm |
| Fuel Tank Capacity | 63 L | 90 L |
