1951 Austin Princess vs. 2007 BMW 525
To start off, 2007 BMW 525 is newer by 56 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, 2007 BMW 525 (215 HP @ 6500 RPM) has 91 more horse power than 1951 Austin Princess. (124 HP @ 3800 RPM) In normal driving conditions, 2007 BMW 525 should accelerate faster than 1951 Austin Princess. With that said, vehicle weight also plays an important factor in acceleration. 1951 Austin Princess weights approximately 390 kg more than 2007 BMW 525.
Because 2007 BMW 525 is four wheel drive (4WD), it will have significant more traction and grip than 1951 Austin Princess. In wet, icy, snow, or gravel driving conditions, 2007 BMW 525 will offer significantly more control. 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 38 more torque (in Nm) than 2007 BMW 525. (250 Nm @ 2750 RPM). This means 1951 Austin Princess will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW 525. 2007 BMW 525 has automatic transmission and 1951 Austin Princess has manual transmission. 1951 Austin Princess will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 BMW 525 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1951 Austin Princess | 2007 BMW 525 | |
| Make | Austin | BMW |
| Model | Princess | 525 |
| Year Released | 1951 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 3990 cc | 2497 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 124 HP | 215 HP |
| Engine RPM | 3800 RPM | 6500 RPM |
| Torque | 288 Nm | 250 Nm |
| Torque RPM | 2200 RPM | 2750 RPM |
| Engine Bore Size | 87.3 mm | 78.8 mm |
| Engine Stroke Size | 111.1 mm | 82 mm |
| Engine Compression Ratio | 6.8:1 | 11.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1955 kg | 1565 kg |
| Vehicle Length | 4880 mm | 4850 mm |
| Vehicle Width | 1860 mm | 1850 mm |
| Vehicle Height | 1710 mm | 1470 mm |
| Wheelbase Size | 3030 mm | 2890 mm |
| Fuel Tank Capacity | 34 L | 70 L |
