2003 Infiniti M vs. 1972 Rover P5B
To start off, 2003 Infiniti M is newer by 31 year(s). Which means there will be less support and parts availability for 1972 Rover P5B. In addition, the cost of maintenance, including insurance, on 1972 Rover P5B would be higher. At 4,494 cc (8 cylinders), 2003 Infiniti M is equipped with a bigger engine. In terms of performance, 2003 Infiniti M (340 HP @ 6400 RPM) has 182 more horse power than 1972 Rover P5B. (158 HP @ 5200 RPM). In normal driving conditions, 2003 Infiniti M should accelerate faster than 1972 Rover P5B. With that said, vehicle weight also plays an important factor in acceleration. 2003 Infiniti M weights approximately 157 kg more than 1972 Rover P5B. 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, 2003 Infiniti M (451 Nm @ 4000 RPM) has 156 more torque (in Nm) than 1972 Rover P5B. (295 Nm @ 3000 RPM). This means 2003 Infiniti M will have an easier job in driving up hills or pulling heavy equipment than 1972 Rover P5B.
Compare all specifications:
| 2003 Infiniti M | 1972 Rover P5B | |
| Make | Infiniti | Rover |
| Model | M | P5B |
| Year Released | 2003 | 1972 |
| Engine Size | 4494 cc | 3528 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | in-line |
| Horse Power | 340 HP | 158 HP |
| Engine RPM | 6400 RPM | 5200 RPM |
| Torque | 451 Nm | 295 Nm |
| Torque RPM | 4000 RPM | 3000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Vehicle Weight | 1747 kg | 1590 kg |
| Vehicle Length | 5020 mm | 4750 mm |
| Vehicle Width | 1780 mm | 1790 mm |
| Vehicle Height | 1470 mm | 1550 mm |
| Wheelbase Size | 2810 mm | 2820 mm |
