1991 Buick Roadmaster vs. 1973 Rover P5B
To start off, 1991 Buick Roadmaster is newer by 18 year(s). Which means there will be less support and parts availability for 1973 Rover P5B. In addition, the cost of maintenance, including insurance, on 1973 Rover P5B would be higher. At 5,731 cc (8 cylinders), 1991 Buick Roadmaster is equipped with a bigger engine. In terms of performance, 1991 Buick Roadmaster (177 HP @ 4200 RPM) has 19 more horse power than 1973 Rover P5B. (158 HP @ 5200 RPM). In normal driving conditions, 1991 Buick Roadmaster should accelerate faster than 1973 Rover P5B. With that said, vehicle weight also plays an important factor in acceleration. 1991 Buick Roadmaster weights approximately 260 kg more than 1973 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, 1991 Buick Roadmaster (393 Nm @ 2400 RPM) has 98 more torque (in Nm) than 1973 Rover P5B. (295 Nm @ 3000 RPM). This means 1991 Buick Roadmaster will have an easier job in driving up hills or pulling heavy equipment than 1973 Rover P5B.
Compare all specifications:
| 1991 Buick Roadmaster | 1973 Rover P5B | |
| Make | Buick | Rover |
| Model | Roadmaster | P5B |
| Year Released | 1991 | 1973 |
| Body Type | Sedan | Coupe |
| Engine Size | 5731 cc | 3528 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | in-line |
| Horse Power | 177 HP | 158 HP |
| Engine RPM | 4200 RPM | 5200 RPM |
| Torque | 393 Nm | 295 Nm |
| Torque RPM | 2400 RPM | 3000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Vehicle Weight | 1840 kg | 1580 kg |
| Vehicle Length | 5280 mm | 4750 mm |
| Vehicle Width | 2040 mm | 1790 mm |
| Vehicle Height | 1650 mm | 1480 mm |
| Wheelbase Size | 2950 mm | 2820 mm |
