2003 Alpina B3 vs. 2007 BMW 525
To start off, 2007 BMW 525 is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Alpina B3. In addition, the cost of maintenance, including insurance, on 2003 Alpina B3 would be higher. At 3,346 cc (6 cylinders), 2003 Alpina B3 is equipped with a bigger engine. In terms of performance, 2003 Alpina B3 (301 HP @ 6300 RPM) has 86 more horse power than 2007 BMW 525. (215 HP @ 6500 RPM). In normal driving conditions, 2003 Alpina B3 should accelerate faster than 2007 BMW 525. With that said, vehicle weight also plays an important factor in acceleration. 2003 Alpina B3 weights approximately 505 kg more than 2007 BMW 525. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 2003 Alpina B3 (362 Nm @ 4800 RPM) has 112 more torque (in Nm) than 2007 BMW 525. (250 Nm @ 2900 RPM). This means 2003 Alpina B3 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW 525.
Compare all specifications:
| 2003 Alpina B3 | 2007 BMW 525 | |
| Make | Alpina | BMW |
| Model | B3 | 525 |
| Year Released | 2003 | 2007 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3346 cc | 2496 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 301 HP | 215 HP |
| Engine RPM | 6300 RPM | 6500 RPM |
| Torque | 362 Nm | 250 Nm |
| Torque RPM | 4800 RPM | 2900 RPM |
| Engine Bore Size | 87.1 mm | 82 mm |
| Engine Stroke Size | 93.9 mm | 78.8 mm |
| Engine Compression Ratio | 10.0:1 | 11.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Acceleration 0-100mph | 5.8 seconds | 7.9 seconds |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 2000 kg | 1495 kg |
| Vehicle Length | 4480 mm | 4850 mm |
| Vehicle Width | 1750 mm | 1470 mm |
| Vehicle Height | 1420 mm | 1850 mm |
| Wheelbase Size | 3000 mm | 2890 mm |
| Fuel Consumption Overall | 11.1 L/100km | 7 L/100km |
| Fuel Tank Capacity | 63 L | 70 L |
