2006 Alpina B5 vs. 2003 Subaru Legacy
To start off, 2006 Alpina B5 is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Subaru Legacy. In addition, the cost of maintenance, including insurance, on 2003 Subaru Legacy would be higher. At 4,398 cc (8 cylinders), 2006 Alpina B5 is equipped with a bigger engine. In terms of performance, 2006 Alpina B5 (492 HP @ 5500 RPM) has 250 more horse power than 2003 Subaru Legacy. (242 HP @ 6600 RPM). In normal driving conditions, 2006 Alpina B5 should accelerate faster than 2003 Subaru Legacy.
Because 2003 Subaru Legacy is four wheel drive (4WD), it will have significant more traction and grip than 2006 Alpina B5. In wet, icy, snow, or gravel driving conditions, 2003 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 Alpina B5 (701 Nm @ 4250 RPM) has 404 more torque (in Nm) than 2003 Subaru Legacy. (297 Nm @ 4200 RPM). This means 2006 Alpina B5 will have an easier job in driving up hills or pulling heavy equipment than 2003 Subaru Legacy.
Compare all specifications:
| 2006 Alpina B5 | 2003 Subaru Legacy | |
| Make | Alpina | Subaru |
| Model | B5 | Legacy |
| Year Released | 2006 | 2003 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 3000 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 492 HP | 242 HP |
| Engine RPM | 5500 RPM | 6600 RPM |
| Torque | 701 Nm | 297 Nm |
| Torque RPM | 4250 RPM | 4200 RPM |
| Engine Bore Size | 92 mm | 89.2 mm |
| Engine Stroke Size | 82.7 mm | 80 mm |
| Top Speed | 314 km/hour | 237 km/hour |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Length | 4850 mm | 4730 mm |
| Vehicle Width | 1850 mm | 1740 mm |
| Vehicle Height | 1470 mm | 1430 mm |
| Wheelbase Size | 3000 mm | 2680 mm |
| Fuel Consumption Overall | 12.3 L/100km | 9.8 L/100km |
| Fuel Tank Capacity | 70 L | 64 L |
