1951 Austin Princess vs. 1984 BMW 725
To start off, 1984 BMW 725 is newer by 33 year(s). Which means there will be less support and parts availability for 1951 Austin Princess. In addition, the cost of maintenance, including insurance, on 1951 Austin Princess would be higher. At 3,990 cc (6 cylinders), 1951 Austin Princess is equipped with a bigger engine. In terms of performance, 1984 BMW 725 (148 HP @ 5500 RPM) has 24 more horse power than 1951 Austin Princess. (124 HP @ 3800 RPM) In normal driving conditions, 1984 BMW 725 should accelerate faster than 1951 Austin Princess.
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, 1951 Austin Princess (288 Nm @ 2200 RPM) has 73 more torque (in Nm) than 1984 BMW 725. (215 Nm @ 4000 RPM). This means 1951 Austin Princess will have an easier job in driving up hills or pulling heavy equipment than 1984 BMW 725.
Compare all specifications:
| 1951 Austin Princess | 1984 BMW 725 | |
| Make | Austin | BMW |
| Model | Princess | 725 |
| Year Released | 1951 | 1984 |
| Engine Position | Front | Front |
| Engine Size | 3990 cc | 2495 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 124 HP | 148 HP |
| Engine RPM | 3800 RPM | 5500 RPM |
| Torque | 288 Nm | 215 Nm |
| Torque RPM | 2200 RPM | 4000 RPM |
| Engine Bore Size | 87.3 mm | 86 mm |
| Engine Stroke Size | 111.1 mm | 71.6 mm |
| Engine Compression Ratio | 6.8:1 | 9.6:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 4880 mm | 4870 mm |
| Vehicle Width | 1860 mm | 1810 mm |
| Vehicle Height | 1710 mm | 1440 mm |
| Wheelbase Size | 3030 mm | 2810 mm |
