2002 BMW Z4 vs. 2005 Saturn ION
To start off, 2005 Saturn ION is newer by 3 year(s). Which means there will be less support and parts availability for 2002 BMW Z4. In addition, the cost of maintenance, including insurance, on 2002 BMW Z4 would be higher. At 2,494 cc (6 cylinders), 2002 BMW Z4 is equipped with a bigger engine. In terms of performance, 2002 BMW Z4 (190 HP @ 6000 RPM) has 52 more horse power than 2005 Saturn ION. (138 HP @ 5800 RPM). In normal driving conditions, 2002 BMW Z4 should accelerate faster than 2005 Saturn ION. With that said, vehicle weight also plays an important factor in acceleration. 2002 BMW Z4 weights approximately 145 kg more than 2005 Saturn ION. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2002 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 2002 BMW Z4. However, in wet, icy, snow, or gravel driving conditions, 2005 Saturn ION, 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, 2002 BMW Z4 (245 Nm @ 3500 RPM) has 48 more torque (in Nm) than 2005 Saturn ION. (197 Nm @ 4400 RPM). This means 2002 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2005 Saturn ION.
Compare all specifications:
| 2002 BMW Z4 | 2005 Saturn ION | |
| Make | BMW | Saturn |
| Model | Z4 | ION |
| Year Released | 2002 | 2005 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2494 cc | 2189 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 190 HP | 138 HP |
| Engine RPM | 6000 RPM | 5800 RPM |
| Torque | 245 Nm | 197 Nm |
| Torque RPM | 3500 RPM | 4400 RPM |
| Engine Bore Size | 84 mm | 86.1 mm |
| Engine Stroke Size | 75 mm | 94 mm |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 4 seats |
| Vehicle Weight | 1395 kg | 1250 kg |
| Vehicle Length | 4100 mm | 4710 mm |
| Vehicle Width | 1790 mm | 1730 mm |
| Vehicle Height | 1310 mm | 1430 mm |
| Wheelbase Size | 2580 mm | 2630 mm |
