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 2,494 cc (6 cylinders), 2006 BMW Z4 is equipped with a bigger engine. In terms of performance, 2006 BMW Z4 (189 HP @ 6000 RPM) has 48 more horse power than 2009 BMW 320. (141 HP @ 6000 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 190 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 (245 Nm @ 3500 RPM) has 54 more torque (in Nm) than 2009 BMW 320. (191 Nm @ 4250 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 | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2494 cc | 1995 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 189 HP | 141 HP |
| Engine RPM | 6000 RPM | 6000 RPM |
| Torque | 245 Nm | 191 Nm |
| Torque RPM | 3500 RPM | 4250 RPM |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 235 km/hour | 228 km/hour |
| Acceleration 0-100mph | 7.3 seconds | 8.2 seconds |
| Drive Type | Rear | Rear |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1335 kg | 1525 kg |
| Vehicle Length | 4100 mm | 4540 mm |
| Vehicle Width | 1790 mm | 1820 mm |
| Vehicle Height | 1310 mm | 1430 mm |
| Wheelbase Size | 2500 mm | 2770 mm |
| Fuel Consumption Overall | 8.9 L/100km | 5.1 L/100km |
| Fuel Tank Capacity | 55 L | 63 L |
