2004 Alpina B3 vs. 2003 BMW 325
To start off, 2004 Alpina B3 is newer by 1 year(s). Which means there will be less support and parts availability for 2003 BMW 325. In addition, the cost of maintenance, including insurance, on 2003 BMW 325 would be higher. At 3,346 cc (6 cylinders), 2004 Alpina B3 is equipped with a bigger engine. In terms of performance, 2004 Alpina B3 (301 HP @ 6300 RPM) has 109 more horse power than 2003 BMW 325. (192 HP @ 6000 RPM). In normal driving conditions, 2004 Alpina B3 should accelerate faster than 2003 BMW 325. With that said, vehicle weight also plays an important factor in acceleration. 2004 Alpina B3 weights approximately 165 kg more than 2003 BMW 325. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2004 Alpina B3 (363 Nm @ 4800 RPM) has 118 more torque (in Nm) than 2003 BMW 325. (245 Nm @ 3500 RPM). This means 2004 Alpina B3 will have an easier job in driving up hills or pulling heavy equipment than 2003 BMW 325.
Compare all specifications:
| 2004 Alpina B3 | 2003 BMW 325 | |
| Make | Alpina | BMW |
| Model | B3 | 325 |
| Year Released | 2004 | 2003 |
| Body Type | Convertible | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 3346 cc | 2494 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 301 HP | 192 HP |
| Engine RPM | 6300 RPM | 6000 RPM |
| Torque | 363 Nm | 245 Nm |
| Torque RPM | 4800 RPM | 3500 RPM |
| Engine Bore Size | 87 mm | 84.1 mm |
| Engine Stroke Size | 93.8 mm | 75 mm |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 3 doors |
| Vehicle Weight | 1645 kg | 1480 kg |
| Vehicle Length | 4490 mm | 4270 mm |
| Vehicle Width | 1760 mm | 1760 mm |
| Vehicle Height | 1360 mm | 1410 mm |
| Wheelbase Size | 2730 mm | 2730 mm |
| Fuel Tank Capacity | 63 L | 63 L |
