2001 Infiniti QX4 vs. 1951 Rover P4
To start off, 2001 Infiniti QX4 is newer by 50 year(s). Which means there will be less support and parts availability for 1951 Rover P4. In addition, the cost of maintenance, including insurance, on 1951 Rover P4 would be higher. At 3,497 cc (6 cylinders), 2001 Infiniti QX4 is equipped with a bigger engine. In terms of performance, 2001 Infiniti QX4 (238 HP @ 6000 RPM) has 163 more horse power than 1951 Rover P4. (75 HP @ 4200 RPM). In normal driving conditions, 2001 Infiniti QX4 should accelerate faster than 1951 Rover P4. With that said, vehicle weight also plays an important factor in acceleration. 2001 Infiniti QX4 weights approximately 570 kg more than 1951 Rover P4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2001 Infiniti QX4 is four wheel drive (4WD), it will have significant more traction and grip than 1951 Rover P4. In wet, icy, snow, or gravel driving conditions, 2001 Infiniti QX4 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, 2001 Infiniti QX4 (359 Nm @ 3200 RPM) has 209 more torque (in Nm) than 1951 Rover P4. (150 Nm @ 2500 RPM). This means 2001 Infiniti QX4 will have an easier job in driving up hills or pulling heavy equipment than 1951 Rover P4.
Compare all specifications:
| 2001 Infiniti QX4 | 1951 Rover P4 | |
| Make | Infiniti | Rover |
| Model | QX4 | P4 |
| Year Released | 2001 | 1951 |
| Engine Position | Front | Front |
| Engine Size | 3497 cc | 2103 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 238 HP | 75 HP |
| Engine RPM | 6000 RPM | 4200 RPM |
| Torque | 359 Nm | 150 Nm |
| Torque RPM | 3200 RPM | 2500 RPM |
| Engine Compression Ratio | 10.5:1 | 7.3:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1960 kg | 1390 kg |
| Vehicle Length | 5080 mm | 4590 mm |
| Vehicle Width | 1830 mm | 1670 mm |
| Vehicle Height | 1500 mm | 1620 mm |
| Wheelbase Size | 2710 mm | 2830 mm |
| Fuel Tank Capacity | 60 L | 52 L |
