2006 BMW 645 vs. 2006 Saturn ION
To start off, both 2006 BMW 645 and 2006 Saturn ION were released in the same year (2006). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 4,398 cc (8 cylinders), 2006 BMW 645 is equipped with a bigger engine. In terms of performance, 2006 BMW 645 (328 HP @ 6100 RPM) has 188 more horse power than 2006 Saturn ION. (140 HP @ 5600 RPM). In normal driving conditions, 2006 BMW 645 should accelerate faster than 2006 Saturn ION. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 645 weights approximately 586 kg more than 2006 Saturn ION. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 BMW 645 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 645. However, in wet, icy, snow, or gravel driving conditions, 2006 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, 2006 BMW 645 (450 Nm @ 3600 RPM) has 253 more torque (in Nm) than 2006 Saturn ION. (197 Nm @ 4000 RPM). This means 2006 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2006 Saturn ION.
Compare all specifications:
| 2006 BMW 645 | 2006 Saturn ION | |
| Make | BMW | Saturn |
| Model | 645 | ION |
| Year Released | 2006 | 2006 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 2199 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 328 HP | 140 HP |
| Engine RPM | 6100 RPM | 5600 RPM |
| Torque | 450 Nm | 197 Nm |
| Torque RPM | 3600 RPM | 4000 RPM |
| Engine Bore Size | 92 mm | 86 mm |
| Engine Stroke Size | 83 mm | 94 mm |
| Engine Compression Ratio | 10.0:1 | 9.8:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1836 kg | 1250 kg |
| Vehicle Length | 4830 mm | 4710 mm |
| Vehicle Width | 1860 mm | 1730 mm |
| Vehicle Height | 1380 mm | 1430 mm |
| Wheelbase Size | 2790 mm | 2630 mm |
| Fuel Consumption Overall | 12.8 L/100km | 9.6 L/100km |
| Fuel Tank Capacity | 70 L | 95 L |
