2008 BMW Z4 vs. 2006 BMW 325
To start off, 2008 BMW Z4 is newer by 2 year(s). Which means there will be less support and parts availability for 2006 BMW 325. In addition, the cost of maintenance, including insurance, on 2006 BMW 325 would be higher. At 2,494 cc (6 cylinders), 2008 BMW Z4 is equipped with a bigger engine. In terms of performance, 2008 BMW Z4 (215 HP @ 6500 RPM) has 31 more horse power than 2006 BMW 325. (184 HP @ 6000 RPM). In normal driving conditions, 2008 BMW Z4 should accelerate faster than 2006 BMW 325. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 325 weights approximately 325 kg more than 2008 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, 2008 BMW Z4 (250 Nm) has 13 more torque (in Nm) than 2006 BMW 325. (237 Nm). This means 2008 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW 325.
Compare all specifications:
| 2008 BMW Z4 | 2006 BMW 325 | |
| Make | BMW | BMW |
| Model | Z4 | 325 |
| Year Released | 2008 | 2006 |
| Body Type | Convertible | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2494 cc | 2491 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 215 HP | 184 HP |
| Engine RPM | 6500 RPM | 6000 RPM |
| Torque | 250 Nm | 237 Nm |
| Engine Compression Ratio | 10.5:1 | 10.5:1 |
| Drive Type | Rear | Rear |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1290 kg | 1615 kg |
| Vehicle Length | 4100 mm | 4490 mm |
| Vehicle Width | 1790 mm | 1760 mm |
| Vehicle Height | 1310 mm | 1380 mm |
| Wheelbase Size | 2500 mm | 2730 mm |
| Fuel Consumption Overall | 9.5 L/100km | 10.7 L/100km |
| Fuel Tank Capacity | 55 L | 63 L |
