2006 Alpina B5 vs. 1981 BMW 745
To start off, 2006 Alpina B5 is newer by 25 year(s). Which means there will be less support and parts availability for 1981 BMW 745. In addition, the cost of maintenance, including insurance, on 1981 BMW 745 would be higher. At 4,396 cc (8 cylinders), 2006 Alpina B5 is equipped with a bigger engine. In terms of performance, 2006 Alpina B5 (492 HP @ 5500 RPM) has 240 more horse power than 1981 BMW 745. (252 HP @ 5200 RPM). In normal driving conditions, 2006 Alpina B5 should accelerate faster than 1981 BMW 745.
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, 2006 Alpina B5 (700 Nm @ 4250 RPM) has 320 more torque (in Nm) than 1981 BMW 745. (380 Nm @ 2200 RPM). This means 2006 Alpina B5 will have an easier job in driving up hills or pulling heavy equipment than 1981 BMW 745.
Compare all specifications:
2006 Alpina B5 | 1981 BMW 745 | |
Make | Alpina | BMW |
Model | B5 | 745 |
Year Released | 2006 | 1981 |
Body Type | Station Wagon | Sedan |
Engine Position | Front | Front |
Engine Size | 4396 cc | 3430 cc |
Engine Cylinders | 8 cylinders | 6 cylinders |
Engine Type | V | in-line |
Horse Power | 492 HP | 252 HP |
Engine RPM | 5500 RPM | 5200 RPM |
Torque | 700 Nm | 380 Nm |
Torque RPM | 4250 RPM | 2200 RPM |
Engine Bore Size | 92 mm | 92 mm |
Engine Stroke Size | 82.7 mm | 86 mm |
Engine Compression Ratio | 9.0:1 | 8.0:1 |
Top Speed | 300 km/hour | 227 km/hour |
Drive Type | Rear | Rear |
Transmission Type | Automatic | Automatic |
Number of Seats | 5 seats | 5 seats |
Number of Doors | 5 doors | 4 doors |
Vehicle Length | 4850 mm | 4870 mm |
Vehicle Width | 1850 mm | 1810 mm |
Vehicle Height | 1500 mm | 1440 mm |
Wheelbase Size | 2730 mm | 2770 mm |
Fuel Tank Capacity | 70 L | 100 L |