2006 BMW Z4 vs. 2009 BMW 528
To start off, 2009 BMW 528 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 2,996 cc (6 cylinders), 2009 BMW 528 is equipped with a bigger engine. In terms of performance, 2009 BMW 528 (230 HP @ 6500 RPM) has 1 more horse power than 2006 BMW Z4. (229 HP @ 5900 RPM) In normal driving conditions, 2009 BMW 528 should accelerate faster than 2006 BMW Z4.
Because 2009 BMW 528 is four wheel drive (4WD), it will have significant more traction and grip than 2006 BMW Z4. In wet, icy, snow, or gravel driving conditions, 2009 BMW 528 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, 2006 BMW Z4 (300 Nm @ 3500 RPM) has 29 more torque (in Nm) than 2009 BMW 528. (271 Nm @ 2750 RPM). This means 2006 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW 528.
Compare all specifications:
| 2006 BMW Z4 | 2009 BMW 528 | |
| Make | BMW | BMW |
| Model | Z4 | 528 |
| Year Released | 2006 | 2009 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2979 cc | 2996 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 229 HP | 230 HP |
| Engine RPM | 5900 RPM | 6500 RPM |
| Torque | 300 Nm | 271 Nm |
| Torque RPM | 3500 RPM | 2750 RPM |
| Engine Compression Ratio | 10.2:1 | 10.2:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Length | 4570 mm | 4860 mm |
| Vehicle Width | 1790 mm | 1850 mm |
| Vehicle Height | 1680 mm | 1490 mm |
| Wheelbase Size | 2500 mm | 2890 mm |
| Fuel Consumption Overall | 9.1 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 55 L | 70 L |
