2004 BMW 645 vs. 2005 Subaru Outback
To start off, 2005 Subaru Outback is newer by 1 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 168 more horse power than 2005 Subaru Outback. (154 HP @ 5600 RPM). In normal driving conditions, 2004 BMW 645 should accelerate faster than 2005 Subaru Outback. With that said, vehicle weight also plays an important factor in acceleration. 2004 BMW 645 weights approximately 225 kg more than 2005 Subaru Outback. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Subaru Outback is four wheel drive (4WD), it will have significant more traction and grip than 2004 BMW 645. In wet, icy, snow, or gravel driving conditions, 2005 Subaru Outback 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, 2004 BMW 645 (447 Nm) has 224 more torque (in Nm) than 2005 Subaru Outback. (223 Nm). This means 2004 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2005 Subaru Outback.
Compare all specifications:
| 2004 BMW 645 | 2005 Subaru Outback | |
| Make | BMW | Subaru |
| Model | 645 | Outback |
| Year Released | 2004 | 2005 |
| Body Type | Coupe | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 4392 cc | 2455 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 322 HP | 154 HP |
| Engine RPM | 7400 RPM | 5600 RPM |
| Torque | 447 Nm | 223 Nm |
| Engine Bore Size | 92 mm | 99.5 mm |
| Engine Stroke Size | 83 mm | 79 mm |
| Drive Type | Rear | 4WD |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1715 kg | 1490 kg |
| Vehicle Length | 4840 mm | 4730 mm |
| Vehicle Width | 1860 mm | 1750 mm |
| Vehicle Height | 1380 mm | 1550 mm |
| Wheelbase Size | 2790 mm | 2660 mm |
| Fuel Tank Capacity | 70 L | 64 L |
