2001 BMW Z9 vs. 2006 Audi S4
To start off, 2006 Audi S4 is newer by 5 year(s). Which means there will be less support and parts availability for 2001 BMW Z9. In addition, the cost of maintenance, including insurance, on 2001 BMW Z9 would be higher. At 4,400 cc (8 cylinders), 2001 BMW Z9 is equipped with a bigger engine. In terms of performance, 2006 Audi S4 (339 HP @ 7000 RPM) has 53 more horse power than 2001 BMW Z9. (286 HP @ 7400 RPM) In normal driving conditions, 2006 Audi S4 should accelerate faster than 2001 BMW Z9. With that said, vehicle weight also plays an important factor in acceleration. 2001 BMW Z9 weights approximately 340 kg more than 2006 Audi S4.
Because 2006 Audi S4 is four wheel drive (4WD), it will have significant more traction and grip than 2001 BMW Z9. In wet, icy, snow, or gravel driving conditions, 2006 Audi S4 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, 2001 BMW Z9 (597 Nm) has 186 more torque (in Nm) than 2006 Audi S4. (411 Nm). This means 2001 BMW Z9 will have an easier job in driving up hills or pulling heavy equipment than 2006 Audi S4.
Compare all specifications:
| 2001 BMW Z9 | 2006 Audi S4 | |
| Make | BMW | Audi |
| Model | Z9 | S4 |
| Year Released | 2001 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 4400 cc | 4163 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 286 HP | 339 HP |
| Engine RPM | 7400 RPM | 7000 RPM |
| Torque | 597 Nm | 411 Nm |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Vehicle Weight | 1615 kg | 1275 kg |
| Vehicle Length | 4770 mm | 4580 mm |
| Vehicle Width | 1980 mm | 1790 mm |
| Vehicle Height | 1290 mm | 1450 mm |
| Wheelbase Size | 2960 mm | 2660 mm |
| Fuel Tank Capacity | 63 L | 63 L |
