1999 BMW 323 vs. 2007 BMW Z4
To start off, 2007 BMW Z4 is newer by 8 year(s). Which means there will be less support and parts availability for 1999 BMW 323. In addition, the cost of maintenance, including insurance, on 1999 BMW 323 would be higher. Both 1999 BMW 323 and 2007 BMW Z4 are equipped with a 2,494 cc engine. In terms of performance, 2007 BMW Z4 (215 HP @ 6500 RPM) has 45 more horse power than 1999 BMW 323. (170 HP @ 5500 RPM) In normal driving conditions, 2007 BMW Z4 should accelerate faster than 1999 BMW 323. With that said, vehicle weight also plays an important factor in acceleration. 1999 BMW 323 weights approximately 167 kg more than 2007 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, 2007 BMW Z4 (250 Nm @ 2750 RPM) has 5 more torque (in Nm) than 1999 BMW 323. (245 Nm @ 3500 RPM). This means 2007 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 1999 BMW 323.
Compare all specifications:
| 1999 BMW 323 | 2007 BMW Z4 | |
| Make | BMW | BMW |
| Model | 323 | Z4 |
| Year Released | 1999 | 2007 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2494 cc | 2494 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 170 HP | 215 HP |
| Engine RPM | 5500 RPM | 6500 RPM |
| Torque | 245 Nm | 250 Nm |
| Torque RPM | 3500 RPM | 2750 RPM |
| Engine Compression Ratio | 10.5:1 | 10.5:1 |
| Top Speed | 201 km/hour | 227 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1457 kg | 1290 kg |
| Vehicle Length | 4480 mm | 4100 mm |
| Vehicle Width | 1750 mm | 1790 mm |
| Vehicle Height | 1420 mm | 1310 mm |
| Wheelbase Size | 2730 mm | 2500 mm |
| Fuel Tank Capacity | 63 L | 55 L |
