2006 BMW Z4 vs. 2009 BMW 320
To start off, 2009 BMW 320 is newer by 3 year(s). Which means there will be less support and parts availability for 2006 BMW Z4. In addition, the cost of maintenance, including insurance, on 2006 BMW Z4 would be higher. At 3,246 cc (6 cylinders), 2006 BMW Z4 is equipped with a bigger engine. In terms of performance, 2006 BMW Z4 (338 HP @ 7900 RPM) has 190 more horse power than 2009 BMW 320. (148 HP @ 4000 RPM). In normal driving conditions, 2006 BMW Z4 should accelerate faster than 2009 BMW 320. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW 320 weights approximately 5 kg more than 2006 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 Z4 (365 Nm @ 4900 RPM) has 35 more torque (in Nm) than 2009 BMW 320. (330 Nm @ 2000 RPM). This means 2006 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW 320.
Compare all specifications:
| 2006 BMW Z4 | 2009 BMW 320 | |
| Make | BMW | BMW |
| Model | Z4 | 320 |
| Year Released | 2006 | 2009 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Front |
| Engine Size | 3246 cc | 1995 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 338 HP | 148 HP |
| Engine RPM | 7900 RPM | 4000 RPM |
| Torque | 365 Nm | 330 Nm |
| Torque RPM | 4900 RPM | 2000 RPM |
| Engine Compression Ratio | 11.5:1 | 17.0:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 245 km/hour | 221 km/hour |
| Acceleration 0-100mph | 5 seconds | 8.8 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1485 kg | 1490 kg |
| Vehicle Length | 4120 mm | 4490 mm |
| Vehicle Width | 1790 mm | 1760 mm |
| Vehicle Height | 1310 mm | 1380 mm |
| Wheelbase Size | 2500 mm | 2730 mm |
| Fuel Consumption Overall | 12.1 L/100km | 5.8 L/100km |
| Fuel Tank Capacity | 55 L | 63 L |
