2006 Mercury Grand Marquis vs. 1972 Rover P5B
To start off, 2006 Mercury Grand Marquis is newer by 34 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 4,605 cc (8 cylinders), 2006 Mercury Grand Marquis is equipped with a bigger engine. In terms of performance, 2006 Mercury Grand Marquis (224 HP @ 4800 RPM) has 66 more horse power than 1972 Rover P5B. (158 HP @ 5200 RPM). In normal driving conditions, 2006 Mercury Grand Marquis should accelerate faster than 1972 Rover P5B. With that said, vehicle weight also plays an important factor in acceleration. 2006 Mercury Grand Marquis weights approximately 335 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, 2006 Mercury Grand Marquis (369 Nm @ 4000 RPM) has 74 more torque (in Nm) than 1972 Rover P5B. (295 Nm @ 3000 RPM). This means 2006 Mercury Grand Marquis will have an easier job in driving up hills or pulling heavy equipment than 1972 Rover P5B.
Compare all specifications:
| 2006 Mercury Grand Marquis | 1972 Rover P5B | |
| Make | Mercury | Rover |
| Model | Grand Marquis | P5B |
| Year Released | 2006 | 1972 |
| Engine Size | 4605 cc | 3528 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | in-line |
| Horse Power | 224 HP | 158 HP |
| Engine RPM | 4800 RPM | 5200 RPM |
| Torque | 369 Nm | 295 Nm |
| Torque RPM | 4000 RPM | 3000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Vehicle Weight | 1925 kg | 1590 kg |
| Vehicle Length | 5390 mm | 4750 mm |
| Vehicle Width | 2000 mm | 1790 mm |
| Vehicle Height | 1490 mm | 1550 mm |
| Wheelbase Size | 2920 mm | 2820 mm |
