2009 Audi RS6 vs. 1999 BMW Z9
To start off, 2009 Audi RS6 is newer by 10 year(s). Which means there will be less support and parts availability for 1999 BMW Z9. In addition, the cost of maintenance, including insurance, on 1999 BMW Z9 would be higher. At 4,991 cc (10 cylinders), 2009 Audi RS6 is equipped with a bigger engine. In terms of performance, 2009 Audi RS6 (572 HP @ 6250 RPM) has 330 more horse power than 1999 BMW Z9. (242 HP @ 4000 RPM). In normal driving conditions, 2009 Audi RS6 should accelerate faster than 1999 BMW Z9.
Because 2009 Audi RS6 is four wheel drive (4WD), it will have significant more traction and grip than 1999 BMW Z9. In wet, icy, snow, or gravel driving conditions, 2009 Audi RS6 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, 2009 Audi RS6 (650 Nm @ 1500 RPM) has 90 more torque (in Nm) than 1999 BMW Z9. (560 Nm @ 1750 RPM). This means 2009 Audi RS6 will have an easier job in driving up hills or pulling heavy equipment than 1999 BMW Z9.
Compare all specifications:
| 2009 Audi RS6 | 1999 BMW Z9 | |
| Make | Audi | BMW |
| Model | RS6 | Z9 |
| Year Released | 2009 | 1999 |
| Engine Position | Front | Front |
| Engine Size | 4991 cc | 3901 cc |
| Engine Cylinders | 10 cylinders | 8 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 572 HP | 242 HP |
| Engine RPM | 6250 RPM | 4000 RPM |
| Torque | 650 Nm | 560 Nm |
| Torque RPM | 1500 RPM | 1750 RPM |
| Fuel Type | Gasoline - Premium | Diesel |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 2 seats |
| Vehicle Length | 4930 mm | 5010 mm |
| Vehicle Width | 1900 mm | 2010 mm |
| Vehicle Height | 1460 mm | 1360 mm |
| Wheelbase Size | 2850 mm | 3110 mm |
