2009 BMW Z4 vs. 2007 BMW 525
To start off, 2009 BMW Z4 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 BMW 525. In addition, the cost of maintenance, including insurance, on 2007 BMW 525 would be higher. At 2,996 cc (6 cylinders), 2009 BMW Z4 is equipped with a bigger engine. In terms of performance, 2009 BMW Z4 (261 HP @ 6600 RPM) has 46 more horse power than 2007 BMW 525. (215 HP @ 6500 RPM). In normal driving conditions, 2009 BMW Z4 should accelerate faster than 2007 BMW 525. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW 525 weights approximately 285 kg more than 2009 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, 2009 BMW Z4 (315 Nm @ 2750 RPM) has 64 more torque (in Nm) than 2007 BMW 525. (251 Nm @ 2750 RPM). This means 2009 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW 525.
Compare all specifications:
| 2009 BMW Z4 | 2007 BMW 525 | |
| Make | BMW | BMW |
| Model | Z4 | 525 |
| Year Released | 2009 | 2007 |
| Body Type | Coupe | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 2996 cc | 2497 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 261 HP | 215 HP |
| Engine RPM | 6600 RPM | 6500 RPM |
| Torque | 315 Nm | 251 Nm |
| Torque RPM | 2750 RPM | 2750 RPM |
| Engine Bore Size | 85.1 mm | 78.8 mm |
| Engine Stroke Size | 88 mm | 82 mm |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Acceleration 0-100mph | 5.7 seconds | 7.8 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1395 kg | 1680 kg |
| Vehicle Length | 4100 mm | 4850 mm |
| Vehicle Width | 1790 mm | 1850 mm |
| Vehicle Height | 1270 mm | 1500 mm |
| Wheelbase Size | 2500 mm | 2840 mm |
| Fuel Consumption Overall | 8.9 L/100km | 8.9 L/100km |
| Fuel Tank Capacity | 55 L | 70 L |
