2006 Alpina B3 vs. 2003 Subaru Legacy
To start off, 2006 Alpina B3 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 3,347 cc (6 cylinders), 2006 Alpina B3 is equipped with a bigger engine. In terms of performance, 2006 Alpina B3 (301 HP @ 6300 RPM) has 25 more horse power than 2003 Subaru Legacy. (276 HP @ 6400 RPM). In normal driving conditions, 2006 Alpina B3 should accelerate faster than 2003 Subaru Legacy. With that said, vehicle weight also plays an important factor in acceleration. 2006 Alpina B3 weights approximately 115 kg more than 2003 Subaru Legacy. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 Subaru Legacy is four wheel drive (4WD), it will have significant more traction and grip than 2006 Alpina B3. 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 B3 (363 Nm @ 4800 RPM) has 20 more torque (in Nm) than 2003 Subaru Legacy. (343 Nm @ 2400 RPM). This means 2006 Alpina B3 will have an easier job in driving up hills or pulling heavy equipment than 2003 Subaru Legacy.
Compare all specifications:
| 2006 Alpina B3 | 2003 Subaru Legacy | |
| Make | Alpina | Subaru |
| Model | B3 | Legacy |
| Year Released | 2006 | 2003 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3347 cc | 1994 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 301 HP | 276 HP |
| Engine RPM | 6300 RPM | 6400 RPM |
| Torque | 363 Nm | 343 Nm |
| Torque RPM | 4800 RPM | 2400 RPM |
| Engine Bore Size | 87 mm | 92 mm |
| Engine Stroke Size | 93.9 mm | 75 mm |
| Drive Type | Rear | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1525 kg | 1410 kg |
| Vehicle Length | 4480 mm | 4640 mm |
| Vehicle Width | 1750 mm | 1740 mm |
| Vehicle Height | 1420 mm | 1430 mm |
| Wheelbase Size | 2730 mm | 2680 mm |
| Fuel Tank Capacity | 63 L | 64 L |
