2006 BMW 645 vs. 2003 Subaru R2
To start off, 2006 BMW 645 is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Subaru R2. In addition, the cost of maintenance, including insurance, on 2003 Subaru R2 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 276 more horse power than 2003 Subaru R2. (52 HP @ 6400 RPM). In normal driving conditions, 2006 BMW 645 should accelerate faster than 2003 Subaru R2. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 645 weights approximately 1016 kg more than 2003 Subaru R2. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 Subaru R2 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, 2003 Subaru R2 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 386 more torque (in Nm) than 2003 Subaru R2. (64 Nm @ 4400 RPM). This means 2006 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2003 Subaru R2.
Compare all specifications:
| 2006 BMW 645 | 2003 Subaru R2 | |
| Make | BMW | Subaru |
| Model | 645 | R2 |
| Year Released | 2006 | 2003 |
| Body Type | Convertible | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 658 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 328 HP | 52 HP |
| Engine RPM | 6100 RPM | 6400 RPM |
| Torque | 450 Nm | 64 Nm |
| Torque RPM | 3600 RPM | 4400 RPM |
| Engine Bore Size | 92 mm | 56 mm |
| Engine Stroke Size | 83 mm | 66.8 mm |
| 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 | 820 kg |
| Vehicle Length | 4830 mm | 3400 mm |
| Vehicle Width | 1860 mm | 1480 mm |
| Vehicle Height | 1380 mm | 1530 mm |
| Wheelbase Size | 2790 mm | 2370 mm |
| Fuel Tank Capacity | 70 L | 30 L |
