1951 Austin Princess vs. 2007 BMW X3
To start off, 2007 BMW X3 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 X3 (229 HP @ 5900 RPM) has 105 more horse power than 1951 Austin Princess. (124 HP @ 3800 RPM) In normal driving conditions, 2007 BMW X3 should accelerate faster than 1951 Austin Princess. With that said, vehicle weight also plays an important factor in acceleration. 1951 Austin Princess weights approximately 190 kg more than 2007 BMW X3.
Because 2007 BMW X3 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 X3 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, 2007 BMW X3 (300 Nm @ 3500 RPM) has 12 more torque (in Nm) than 1951 Austin Princess. (288 Nm @ 2200 RPM). This means 2007 BMW X3 will have an easier job in driving up hills or pulling heavy equipment than 1951 Austin Princess. 2007 BMW X3 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 X3 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1951 Austin Princess | 2007 BMW X3 | |
| Make | Austin | BMW |
| Model | Princess | X3 |
| Year Released | 1951 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 3990 cc | 2979 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 124 HP | 229 HP |
| Engine RPM | 3800 RPM | 5900 RPM |
| Torque | 288 Nm | 300 Nm |
| Torque RPM | 2200 RPM | 3500 RPM |
| Engine Compression Ratio | 6.8:1 | 10.2:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1955 kg | 1765 kg |
| Vehicle Length | 4880 mm | 4570 mm |
| Vehicle Width | 1860 mm | 1860 mm |
| Vehicle Height | 1710 mm | 1680 mm |
| Wheelbase Size | 3030 mm | 2800 mm |
| Fuel Tank Capacity | 34 L | 67 L |
