2005 Audi S4 vs. 2000 BMW Z9
To start off, 2005 Audi S4 is newer by 5 year(s). Which means there will be less support and parts availability for 2000 BMW Z9. In addition, the cost of maintenance, including insurance, on 2000 BMW Z9 would be higher. At 4,398 cc (8 cylinders), 2000 BMW Z9 is equipped with a bigger engine. In terms of performance, 2005 Audi S4 (340 HP @ 6300 RPM) has 58 more horse power than 2000 BMW Z9. (282 HP @ 5400 RPM). In normal driving conditions, 2005 Audi S4 should accelerate faster than 2000 BMW Z9. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S4 weights approximately 154 kg more than 2000 BMW Z9. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2000 BMW Z9 (440 Nm) has 30 more torque (in Nm) than 2005 Audi S4. (410 Nm). This means 2000 BMW Z9 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi S4.
Compare all specifications:
| 2005 Audi S4 | 2000 BMW Z9 | |
| Make | Audi | BMW |
| Model | S4 | Z9 |
| Year Released | 2005 | 2000 |
| Body Type | Convertible | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4161 cc | 4398 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 340 HP | 282 HP |
| Engine RPM | 6300 RPM | 5400 RPM |
| Torque | 410 Nm | 440 Nm |
| Engine Bore Size | 85 mm | 92 mm |
| Engine Stroke Size | 93 mm | 82.7 mm |
| Engine Compression Ratio | 11.0:1 | 10.0:1 |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1840 kg | 1686 kg |
| Vehicle Length | 4580 mm | 4770 mm |
| Vehicle Width | 1780 mm | 1980 mm |
| Vehicle Height | 1400 mm | 1290 mm |
| Wheelbase Size | 2660 mm | 2960 mm |
