1999 BMW Z9 vs. 2010 BMW Z4
To start off, 2010 BMW Z4 is newer by 11 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 4,397 cc (8 cylinders), 1999 BMW Z9 is equipped with a bigger engine. In terms of performance, 2010 BMW Z4 (255 HP @ 6600 RPM) has 13 more horse power than 1999 BMW Z9. (242 HP @ 7400 RPM) In normal driving conditions, 2010 BMW Z4 should accelerate faster than 1999 BMW Z9. With that said, vehicle weight also plays an important factor in acceleration. 1999 BMW Z9 weights approximately 160 kg more than 2010 BMW Z4.
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 Z9 (560 Nm @ 1750 RPM) has 262 more torque (in Nm) than 2010 BMW Z4. (298 Nm @ 2600 RPM). This means 1999 BMW Z9 will have an easier job in driving up hills or pulling heavy equipment than 2010 BMW Z4.
Compare all specifications:
| 1999 BMW Z9 | 2010 BMW Z4 | |
| Make | BMW | BMW |
| Model | Z9 | Z4 |
| Year Released | 1999 | 2010 |
| Body Type | Coupe | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4397 cc | 3000 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Horse Power | 242 HP | 255 HP |
| Engine RPM | 7400 RPM | 6600 RPM |
| Torque | 560 Nm | 298 Nm |
| Torque RPM | 1750 RPM | 2600 RPM |
| Drive Type | Rear | Rear |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1630 kg | 1470 kg |
| Vehicle Length | 5010 mm | 4239 mm |
| Vehicle Width | 1980 mm | 1791 mm |
| Vehicle Height | 1350 mm | 1290 mm |
| Wheelbase Size | 3060 mm | 2497 mm |
