2006 BMW 323 vs. 2007 BMW Z4
To start off, 2007 BMW Z4 is newer by 1 year(s). Which means there will be less support and parts availability for 2006 BMW 323. In addition, the cost of maintenance, including insurance, on 2006 BMW 323 would be higher. At 2,497 cc, 2006 BMW 323 is equipped with a bigger engine. In terms of performance, 2006 BMW 323 (175 HP @ 5800 RPM) has 7 more horse power than 2007 BMW Z4. (168 HP @ 6250 RPM). In normal driving conditions, 2006 BMW 323 should accelerate faster 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, 2006 BMW 323 (230 Nm) has 20 more torque (in Nm) than 2007 BMW Z4. (210 Nm). This means 2006 BMW 323 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW Z4. 2007 BMW Z4 has automatic transmission and 2006 BMW 323 has manual transmission. 2006 BMW 323 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 BMW Z4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 BMW 323 | 2007 BMW Z4 | |
| Make | BMW | BMW |
| Model | 323 | Z4 |
| Year Released | 2006 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 2497 cc | 2171 cc |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 175 HP | 168 HP |
| Engine RPM | 5800 RPM | 6250 RPM |
| Torque | 230 Nm | 210 Nm |
| Engine Bore Size | 78.8 mm | 80 mm |
| Engine Stroke Size | 82 mm | 72 mm |
| Engine Compression Ratio | 11.0:1 | 10.8:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 229 km/hour | 225 km/hour |
| Acceleration 0-100mph | 7.9 seconds | 7.7 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Width | 1850 mm | 1790 mm |
| Fuel Consumption Overall | 8.6 L/100km | 8.9 L/100km |
| Fuel Tank Capacity | 63 L | 55 L |
