1973 Austin Allegro vs. 2006 BMW 645
To start off, 2006 BMW 645 is newer by 33 year(s). Which means there will be less support and parts availability for 1973 Austin Allegro. In addition, the cost of maintenance, including insurance, on 1973 Austin Allegro would be higher. At 4,398 cc (8 cylinders), 2006 BMW 645 is equipped with a bigger engine. In terms of performance, 2006 BMW 645 (328 HP @ 6100 RPM) has 257 more horse power than 1973 Austin Allegro. (71 HP @ 5500 RPM) In normal driving conditions, 2006 BMW 645 should accelerate faster than 1973 Austin Allegro. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 645 weights approximately 946 kg more than 1973 Austin Allegro. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 BMW 645 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2006 BMW 645. However, in wet, icy, snow, or gravel driving conditions, 1973 Austin Allegro, being front wheel drive (FWD), will offer much better control with better grip. 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 BMW 645 (450 Nm @ 3600 RPM) has 318 more torque (in Nm) than 1973 Austin Allegro. (132 Nm @ 2300 RPM). This means 2006 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 1973 Austin Allegro.
Compare all specifications:
| 1973 Austin Allegro | 2006 BMW 645 | |
| Make | Austin | BMW |
| Model | Allegro | 645 |
| Year Released | 1973 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 1748 cc | 4398 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 71 HP | 328 HP |
| Engine RPM | 5500 RPM | 6100 RPM |
| Torque | 132 Nm | 450 Nm |
| Torque RPM | 2300 RPM | 3600 RPM |
| Engine Bore Size | 76.2 mm | 92 mm |
| Engine Stroke Size | 95.8 mm | 83 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 890 kg | 1836 kg |
| Vehicle Length | 3200 mm | 4830 mm |
| Vehicle Width | 1620 mm | 1860 mm |
| Vehicle Height | 1400 mm | 1380 mm |
| Wheelbase Size | 2450 mm | 2790 mm |
| Fuel Tank Capacity | 47 L | 70 L |
