2006 BMW Z4 vs. 2000 BMW Z9
To start off, 2006 BMW Z4 is newer by 6 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, 2000 BMW Z9 (282 HP @ 5400 RPM) has 93 more horse power than 2006 BMW Z4. (189 HP @ 6000 RPM) In normal driving conditions, 2000 BMW Z9 should accelerate faster than 2006 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2000 BMW Z9 weights approximately 351 kg more than 2006 BMW Z4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 2000 BMW Z9 (440 Nm @ 3600 RPM) has 195 more torque (in Nm) than 2006 BMW Z4. (245 Nm @ 3500 RPM). This means 2000 BMW Z9 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW Z4.
Compare all specifications:
| 2006 BMW Z4 | 2000 BMW Z9 | |
| Make | BMW | BMW |
| Model | Z4 | Z9 |
| Year Released | 2006 | 2000 |
| Body Type | Convertible | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2492 cc | 4398 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 189 HP | 282 HP |
| Engine RPM | 6000 RPM | 5400 RPM |
| Torque | 245 Nm | 440 Nm |
| Torque RPM | 3500 RPM | 3600 RPM |
| Engine Bore Size | 84 mm | 92 mm |
| Engine Stroke Size | 75 mm | 82.7 mm |
| Engine Compression Ratio | 11.0:1 | 10.0:1 |
| Drive Type | Rear | Rear |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1335 kg | 1686 kg |
| Vehicle Length | 4100 mm | 4770 mm |
| Vehicle Width | 1790 mm | 1980 mm |
| Vehicle Height | 1310 mm | 1290 mm |
| Wheelbase Size | 2500 mm | 2960 mm |
