2006 BMW 325 vs. 2009 BMW Z4
To start off, 2009 BMW Z4 is newer by 3 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 3,246 cc (6 cylinders), 2009 BMW Z4 is equipped with a bigger engine. In terms of performance, 2009 BMW Z4 (338 HP @ 7900 RPM) has 123 more horse power than 2006 BMW 325. (215 HP @ 6250 RPM) In normal driving conditions, 2009 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 350 kg more than 2009 BMW Z4.
Because 2006 BMW 325 is four wheel drive (4WD), it will have significant more traction and grip than 2009 BMW Z4. In wet, icy, snow, or gravel driving conditions, 2006 BMW 325 will offer significantly more control. 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, 2009 BMW Z4 (365 Nm @ 4900 RPM) has 114 more torque (in Nm) than 2006 BMW 325. (251 Nm @ 2750 RPM). This means 2009 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW 325.
Compare all specifications:
| 2006 BMW 325 | 2009 BMW Z4 | |
| Make | BMW | BMW |
| Model | 325 | Z4 |
| Year Released | 2006 | 2009 |
| Body Type | Station Wagon | Convertible |
| Engine Position | Front | Front |
| Engine Size | 3001 cc | 3246 cc |
| Horse Power | 215 HP | 338 HP |
| Engine RPM | 6250 RPM | 7900 RPM |
| Torque | 251 Nm | 365 Nm |
| Torque RPM | 2750 RPM | 4900 RPM |
| Engine Compression Ratio | 10.7:1 | 11.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Top Speed | 209 km/hour | 250 km/hour |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1835 kg | 1485 kg |
| Vehicle Length | 4530 mm | 4120 mm |
| Vehicle Width | 1820 mm | 1310 mm |
| Vehicle Height | 1420 mm | 1790 mm |
| Wheelbase Size | 2770 mm | 2500 mm |
| Fuel Consumption Overall | 10.7 L/100km | 12.3 L/100km |
| Fuel Tank Capacity | 67 L | 70 L |
