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), 2006 BMW 325 is equipped with a bigger engine. In terms of performance, 2006 BMW 325 (189 HP @ 6000 RPM) has 41 more horse power than 2008 BMW Z4. (148 HP @ 6200 RPM) In normal driving conditions, 2006 BMW 325 should accelerate faster than 2008 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 325 weights approximately 335 kg more than 2008 BMW Z4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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 325 (245 Nm @ 3500 RPM) has 45 more torque (in Nm) than 2008 BMW Z4. (200 Nm @ 3600 RPM). This means 2006 BMW 325 will have an easier job in driving up hills or pulling heavy equipment than 2008 BMW Z4.
Compare all specifications:
| 2008 BMW Z4 | 2006 BMW 325 | |
| Make | BMW | BMW |
| Model | Z4 | 325 |
| Year Released | 2008 | 2006 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Front |
| Engine Size | 1995 cc | 2494 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 148 HP | 189 HP |
| Engine RPM | 6200 RPM | 6000 RPM |
| Torque | 200 Nm | 245 Nm |
| Torque RPM | 3600 RPM | 3500 RPM |
| Engine Compression Ratio | 10.5:1 | 10.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 215 km/hour | 240 km/hour |
| Acceleration 0-100mph | 8.2 seconds | 7.5 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 | 1295 kg | 1630 kg |
| Vehicle Length | 4100 mm | 4490 mm |
| Vehicle Width | 1310 mm | 1760 mm |
| Vehicle Height | 1790 mm | 1380 mm |
| Wheelbase Size | 2500 mm | 2730 mm |
| Fuel Consumption Overall | 7.5 L/100km | 9.1 L/100km |
| Fuel Tank Capacity | 55 L | 63 L |
