2006 BMW Z4 vs. 1999 BMW 750
To start off, 2006 BMW Z4 is newer by 7 year(s). Which means there will be less support and parts availability for 1999 BMW 750. In addition, the cost of maintenance, including insurance, on 1999 BMW 750 would be higher. At 5,370 cc (12 cylinders), 1999 BMW 750 is equipped with a bigger engine. In terms of performance, 1999 BMW 750 (317 HP @ 7400 RPM) has 132 more horse power than 2006 BMW Z4. (185 HP @ 6000 RPM) In normal driving conditions, 1999 BMW 750 should accelerate faster than 2006 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 1999 BMW 750 weights approximately 728 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, 1999 BMW 750 (490 Nm) has 253 more torque (in Nm) than 2006 BMW Z4. (237 Nm). This means 1999 BMW 750 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW Z4.
Compare all specifications:
| 2006 BMW Z4 | 1999 BMW 750 | |
| Make | BMW | BMW |
| Model | Z4 | 750 |
| Year Released | 2006 | 1999 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2501 cc | 5370 cc |
| Engine Cylinders | 6 cylinders | 12 cylinders |
| Engine Type | in-line | V |
| Horse Power | 185 HP | 317 HP |
| Engine RPM | 6000 RPM | 7400 RPM |
| Torque | 237 Nm | 490 Nm |
| Engine Bore Size | 84.1 mm | 85.1 mm |
| Engine Stroke Size | 74.9 mm | 79 mm |
| Top Speed | 220 km/hour | 206 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1330 kg | 2058 kg |
| Vehicle Length | 4100 mm | 5130 mm |
| Vehicle Width | 1790 mm | 1870 mm |
| Vehicle Height | 1300 mm | 1430 mm |
| Wheelbase Size | 2500 mm | 3080 mm |
