2006 BMW 645 vs. 2009 Subaru Legacy
To start off, 2009 Subaru Legacy is newer by 3 year(s). Which means there will be less support and parts availability for 2006 BMW 645. In addition, the cost of maintenance, including insurance, on 2006 BMW 645 would be higher. 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 165 more horse power than 2009 Subaru Legacy. (163 HP @ 6800 RPM). In normal driving conditions, 2006 BMW 645 should accelerate faster than 2009 Subaru Legacy. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 645 weights approximately 370 kg more than 2009 Subaru Legacy. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Subaru Legacy is four wheel drive (4WD), it will have significant more traction and grip than 2006 BMW 645. In wet, icy, snow, or gravel driving conditions, 2009 Subaru Legacy will offer significantly more control. 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 263 more torque (in Nm) than 2009 Subaru Legacy. (187 Nm @ 3200 RPM). This means 2006 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2009 Subaru Legacy.
Compare all specifications:
| 2006 BMW 645 | 2009 Subaru Legacy | |
| Make | BMW | Subaru |
| Model | 645 | Legacy |
| Year Released | 2006 | 2009 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 1993 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 328 HP | 163 HP |
| Engine RPM | 6100 RPM | 6800 RPM |
| Torque | 450 Nm | 187 Nm |
| Torque RPM | 3600 RPM | 3200 RPM |
| Engine Compression Ratio | 10.0:1 | 11.1:1 |
| Fuel Type | Gasoline | Gasoline |
| Top Speed | 250 km/hour | 201 km/hour |
| Acceleration 0-100mph | 5.6 seconds | 11.4 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1810 kg | 1440 kg |
| Vehicle Width | 1860 mm | 1430 mm |
| Wheelbase Size | 2790 mm | 2680 mm |
| Fuel Consumption Overall | 13.3 L/100km | 8.9 L/100km |
| Fuel Tank Capacity | 70 L | 64 L |
