2007 BMW Z4 vs. 2005 Saab 03-Sep
To start off, 2007 BMW Z4 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Saab 03-Sep. In addition, the cost of maintenance, including insurance, on 2005 Saab 03-Sep would be higher. At 2,996 cc (6 cylinders), 2007 BMW Z4 is equipped with a bigger engine. In terms of performance, 2007 BMW Z4 (255 HP @ 6600 RPM) has 80 more horse power than 2005 Saab 03-Sep. (175 HP @ 4000 RPM). In normal driving conditions, 2007 BMW Z4 should accelerate faster than 2005 Saab 03-Sep. With that said, vehicle weight also plays an important factor in acceleration. 2005 Saab 03-Sep weights approximately 187 kg more than 2007 BMW Z4.
Because 2007 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 2007 BMW Z4. However, in wet, icy, snow, or gravel driving conditions, 2005 Saab 03-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 BMW Z4 (298 Nm @ 2750 RPM) has 33 more torque (in Nm) than 2005 Saab 03-Sep. (265 Nm @ 2500 RPM). This means 2007 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2005 Saab 03-Sep. 2005 Saab 03-Sep has automatic transmission and 2007 BMW Z4 has manual transmission. 2007 BMW Z4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Saab 03-Sep will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 BMW Z4 | 2005 Saab 03-Sep | |
| Make | BMW | Saab |
| Model | Z4 | 03-Sep |
| Year Released | 2007 | 2005 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2996 cc | 1997 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 255 HP | 175 HP |
| Engine RPM | 6600 RPM | 4000 RPM |
| Torque | 298 Nm | 265 Nm |
| Torque RPM | 2750 RPM | 2500 RPM |
| Engine Bore Size | 85 mm | 86 mm |
| Engine Stroke Size | 88 mm | 86 mm |
| Engine Compression Ratio | 10.7:1 | 9.5:1 |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1398 kg | 1585 kg |
| Wheelbase Size | 2500 mm | 2675 mm |
| Fuel Tank Capacity | 55 L | 62 L |
