2006 BMW Z4 vs. 2007 Saab 05-Sep
To start off, 2007 Saab 05-Sep is newer by 1 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 2,999 cc (6 cylinders), 2006 BMW Z4 is equipped with a bigger engine. In terms of performance, 2006 BMW Z4 (255 HP @ 6600 RPM) has 81 more horse power than 2007 Saab 05-Sep. (174 HP @ 4000 RPM). In normal driving conditions, 2006 BMW Z4 should accelerate faster than 2007 Saab 05-Sep. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW Z4 weights approximately 165 kg more than 2007 Saab 05-Sep. 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, 2007 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, 2007 Saab 05-Sep (350 Nm @ 1800 RPM) has 52 more torque (in Nm) than 2006 BMW Z4. (298 Nm @ 2750 RPM). This means 2007 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 | 2007 Saab 05-Sep | |
| Make | BMW | Saab |
| Model | Z4 | 05-Sep |
| Year Released | 2006 | 2007 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2999 cc | 2958 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 255 HP | 174 HP |
| Engine RPM | 6600 RPM | 4000 RPM |
| Torque | 298 Nm | 350 Nm |
| Torque RPM | 2750 RPM | 1800 RPM |
| Engine Compression Ratio | 10.7:1 | 18.5:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Drive Type | Rear | Front |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1835 kg | 1670 kg |
| Vehicle Length | 4100 mm | 4830 mm |
| Vehicle Width | 1790 mm | 1800 mm |
| Vehicle Height | 1270 mm | 1460 mm |
| Wheelbase Size | 2500 mm | 2710 mm |
| Fuel Consumption Overall | 9.8 L/100km | 7.3 L/100km |
| Fuel Tank Capacity | 55 L | 75 L |
