2004 BMW 645 vs. 2008 Saturn Aura
To start off, 2008 Saturn Aura is newer by 4 year(s). Which means there will be less support and parts availability for 2004 BMW 645. In addition, the cost of maintenance, including insurance, on 2004 BMW 645 would be higher. At 4,392 cc (8 cylinders), 2004 BMW 645 is equipped with a bigger engine. In terms of performance, 2004 BMW 645 (322 HP @ 7400 RPM) has 158 more horse power than 2008 Saturn Aura. (164 HP @ 6400 RPM). In normal driving conditions, 2004 BMW 645 should accelerate faster than 2008 Saturn Aura.
Because 2004 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 2004 BMW 645. However, in wet, icy, snow, or gravel driving conditions, 2008 Saturn Aura, 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, 2004 BMW 645 (447 Nm) has 231 more torque (in Nm) than 2008 Saturn Aura. (216 Nm). This means 2004 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2008 Saturn Aura.
Compare all specifications:
| 2004 BMW 645 | 2008 Saturn Aura | |
| Make | BMW | Saturn |
| Model | 645 | Aura |
| Year Released | 2004 | 2008 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4392 cc | 2393 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 322 HP | 164 HP |
| Engine RPM | 7400 RPM | 6400 RPM |
| Torque | 447 Nm | 216 Nm |
| Drive Type | Rear | Front |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Length | 4840 mm | 4860 mm |
| Vehicle Width | 1860 mm | 1790 mm |
| Vehicle Height | 1380 mm | 1470 mm |
| Wheelbase Size | 2790 mm | 2860 mm |
| Fuel Consumption Highway | 9.4 L/100km | 7.8 L/100km |
| Fuel Consumption City | 13.8 L/100km | 10.7 L/100km |
| Fuel Consumption Overall | 11.8 L/100km | 9.4 L/100km |
| Fuel Tank Capacity | 70 L | 61 L |
