1991 Alpina B vs. 2009 BMW 525
To start off, 2009 BMW 525 is newer by 18 year(s). Which means there will be less support and parts availability for 1991 Alpina B. In addition, the cost of maintenance, including insurance, on 1991 Alpina B would be higher. At 5,646 cc (12 cylinders), 1991 Alpina B is equipped with a bigger engine. In terms of performance, 1991 Alpina B (410 HP @ 5400 RPM) has 235 more horse power than 2009 BMW 525. (175 HP @ 4000 RPM). In normal driving conditions, 1991 Alpina B should accelerate faster than 2009 BMW 525. With that said, vehicle weight also plays an important factor in acceleration. 1991 Alpina B weights approximately 116 kg more than 2009 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, 1991 Alpina B (570 Nm @ 4000 RPM) has 170 more torque (in Nm) than 2009 BMW 525. (400 Nm @ 2000 RPM). This means 1991 Alpina B will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW 525.
Compare all specifications:
| 1991 Alpina B | 2009 BMW 525 | |
| Make | Alpina | BMW |
| Model | B | 525 |
| Year Released | 1991 | 2009 |
| Engine Size | 5646 cc | 2497 cc |
| Engine Cylinders | 12 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 410 HP | 175 HP |
| Engine RPM | 5400 RPM | 4000 RPM |
| Torque | 570 Nm | 400 Nm |
| Torque RPM | 4000 RPM | 2000 RPM |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Vehicle Weight | 1866 kg | 1750 kg |
| Vehicle Length | 4790 mm | 4850 mm |
| Vehicle Width | 1860 mm | 1850 mm |
| Vehicle Height | 1350 mm | 1500 mm |
| Wheelbase Size | 2690 mm | 2840 mm |
