2006 BMW Z4 vs. 2009 Saab 05-Sep
To start off, 2009 Saab 05-Sep 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 2,492 cc (6 cylinders), 2006 BMW Z4 is equipped with a bigger engine. In terms of performance, 2009 Saab 05-Sep (256 HP @ 5300 RPM) has 67 more horse power than 2006 BMW Z4. (189 HP @ 6000 RPM) In normal driving conditions, 2009 Saab 05-Sep should accelerate faster than 2006 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2009 Saab 05-Sep weights approximately 243 kg more than 2006 BMW Z4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 BMW Z4 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2006 BMW Z4. However, in wet, icy, snow, or gravel driving conditions, 2009 Saab 05-Sep, being front wheel drive (FWD), will offer much better control with better grip. 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 Saab 05-Sep (258 Nm @ 1900 RPM) has 13 more torque (in Nm) than 2006 BMW Z4. (245 Nm @ 3500 RPM). This means 2009 Saab 05-Sep will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW Z4.
Compare all specifications:
| 2006 BMW Z4 | 2009 Saab 05-Sep | |
| Make | BMW | Saab |
| Model | Z4 | 05-Sep |
| Year Released | 2006 | 2009 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2492 cc | 2290 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 189 HP | 256 HP |
| Engine RPM | 6000 RPM | 5300 RPM |
| Torque | 245 Nm | 258 Nm |
| Torque RPM | 3500 RPM | 1900 RPM |
| Engine Compression Ratio | 11.0:1 | 9.3:1 |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1335 kg | 1578 kg |
| Vehicle Width | 1790 mm | 1800 mm |
