1951 Buick 40 vs. 1956 Rover P4
To start off, 1956 Rover P4 is newer by 5 year(s). Which means there will be less support and parts availability for 1951 Buick 40. In addition, the cost of maintenance, including insurance, on 1951 Buick 40 would be higher. At 4,066 cc (8 cylinders), 1951 Buick 40 is equipped with a bigger engine. In terms of performance, 1951 Buick 40 (119 HP @ 3600 RPM) has 11 more horse power than 1956 Rover P4. (108 HP @ 4250 RPM). In normal driving conditions, 1951 Buick 40 should accelerate faster than 1956 Rover P4. With that said, vehicle weight also plays an important factor in acceleration. 1951 Buick 40 weights approximately 187 kg more than 1956 Rover P4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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 Buick 40 (292 Nm @ 2000 RPM) has 86 more torque (in Nm) than 1956 Rover P4. (206 Nm @ 2500 RPM). This means 1951 Buick 40 will have an easier job in driving up hills or pulling heavy equipment than 1956 Rover P4.
Compare all specifications:
| 1951 Buick 40 | 1956 Rover P4 | |
| Make | Buick | Rover |
| Model | 40 | P4 |
| Year Released | 1951 | 1956 |
| Engine Position | Front | Front |
| Engine Size | 4066 cc | 2636 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 119 HP | 108 HP |
| Engine RPM | 3600 RPM | 4250 RPM |
| Torque | 292 Nm | 206 Nm |
| Torque RPM | 2000 RPM | 2500 RPM |
| Engine Bore Size | 78.5 mm | 73 mm |
| Engine Stroke Size | 104.8 mm | 105 mm |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1635 kg | 1448 kg |
| Vehicle Width | 1950 mm | 1670 mm |
| Wheelbase Size | 3090 mm | 2830 mm |
