1973 Austin Allegro vs. 1991 BMW 525
To start off, 1991 BMW 525 is newer by 18 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 2,496 cc (6 cylinders), 1991 BMW 525 is equipped with a bigger engine. In terms of performance, 1991 BMW 525 (143 HP @ 4800 RPM) has 95 more horse power than 1973 Austin Allegro. (48 HP @ 5250 RPM) In normal driving conditions, 1991 BMW 525 should accelerate faster than 1973 Austin Allegro. With that said, vehicle weight also plays an important factor in acceleration. 1991 BMW 525 weights approximately 760 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 1991 BMW 525 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 1991 BMW 525. 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, 1991 BMW 525 (260 Nm @ 2200 RPM) has 179 more torque (in Nm) than 1973 Austin Allegro. (81 Nm @ 2450 RPM). This means 1991 BMW 525 will have an easier job in driving up hills or pulling heavy equipment than 1973 Austin Allegro.
Compare all specifications:
| 1973 Austin Allegro | 1991 BMW 525 | |
| Make | Austin | BMW |
| Model | Allegro | 525 |
| Year Released | 1973 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 1098 cc | 2496 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 48 HP | 143 HP |
| Engine RPM | 5250 RPM | 4800 RPM |
| Torque | 81 Nm | 260 Nm |
| Torque RPM | 2450 RPM | 2200 RPM |
| Engine Bore Size | 64.6 mm | 80 mm |
| Engine Stroke Size | 83.7 mm | 83 mm |
| Engine Compression Ratio | 8.5:1 | 22.0:1 |
| Top Speed | 134 km/hour | 199 km/hour |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 800 kg | 1560 kg |
| Vehicle Length | 3860 mm | 4730 mm |
| Vehicle Width | 1620 mm | 1760 mm |
| Vehicle Height | 1400 mm | 1420 mm |
| Wheelbase Size | 2440 mm | 2770 mm |
| Fuel Tank Capacity | 47 L | 80 L |
