1991 Alpina B vs. 2009 BMW 745
To start off, 2009 BMW 745 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 82 more horse power than 2009 BMW 745. (328 HP @ 6100 RPM). In normal driving conditions, 1991 Alpina B should accelerate faster than 2009 BMW 745. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW 745 weights approximately 79 kg more than 1991 Alpina B.
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 120 more torque (in Nm) than 2009 BMW 745. (450 Nm @ 3600 RPM). This means 1991 Alpina B will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW 745. 2009 BMW 745 has automatic transmission and 1991 Alpina B has manual transmission. 1991 Alpina B will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 BMW 745 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1991 Alpina B | 2009 BMW 745 | |
| Make | Alpina | BMW |
| Model | B | 745 |
| Year Released | 1991 | 2009 |
| Engine Size | 5646 cc | 4398 cc |
| Engine Cylinders | 12 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 410 HP | 328 HP |
| Engine RPM | 5400 RPM | 6100 RPM |
| Torque | 570 Nm | 450 Nm |
| Torque RPM | 4000 RPM | 3600 RPM |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Vehicle Weight | 1866 kg | 1945 kg |
| Vehicle Length | 4790 mm | 5040 mm |
| Vehicle Width | 1860 mm | 1910 mm |
| Vehicle Height | 1350 mm | 1500 mm |
| Wheelbase Size | 2690 mm | 3000 mm |
