2006 BMW 645 vs. 2005 Subaru Impreza
To start off, 2006 BMW 645 is newer by 1 year(s). Which means there will be less support and parts availability for 2005 Subaru Impreza. In addition, the cost of maintenance, including insurance, on 2005 Subaru Impreza 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 106 more horse power than 2005 Subaru Impreza. (222 HP @ 5600 RPM). In normal driving conditions, 2006 BMW 645 should accelerate faster than 2005 Subaru Impreza. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 645 weights approximately 310 kg more than 2005 Subaru Impreza. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Subaru Impreza 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, 2005 Subaru Impreza 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 150 more torque (in Nm) than 2005 Subaru Impreza. (300 Nm @ 4000 RPM). This means 2006 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2005 Subaru Impreza.
Compare all specifications:
| 2006 BMW 645 | 2005 Subaru Impreza | |
| Make | BMW | Subaru |
| Model | 645 | Impreza |
| Year Released | 2006 | 2005 |
| Body Type | Convertible | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 1994 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 328 HP | 222 HP |
| Engine RPM | 6100 RPM | 5600 RPM |
| Torque | 450 Nm | 300 Nm |
| Torque RPM | 3600 RPM | 4000 RPM |
| Engine Bore Size | 92 mm | 92.1 mm |
| Engine Stroke Size | 83 mm | 75 mm |
| Engine Compression Ratio | 10.0:1 | 8.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Acceleration 0-100mph | 6.1 seconds | 6.1 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1836 kg | 1526 kg |
| Vehicle Length | 4830 mm | 4420 mm |
| Vehicle Width | 1860 mm | 1700 mm |
| Vehicle Height | 1380 mm | 1490 mm |
| Wheelbase Size | 2790 mm | 2530 mm |
| Fuel Consumption Overall | 12.8 L/100km | 9.2 L/100km |
| Fuel Tank Capacity | 70 L | 60 L |
