1959 AC Ace vs. 1972 Rover P5B
To start off, 1972 Rover P5B is newer by 13 year(s). Which means there will be less support and parts availability for 1959 AC Ace. In addition, the cost of maintenance, including insurance, on 1959 AC Ace would be higher. At 3,528 cc (8 cylinders), 1972 Rover P5B is equipped with a bigger engine. In terms of performance, 1972 Rover P5B (158 HP @ 5200 RPM) has 33 more horse power than 1959 AC Ace. (125 HP @ 6000 RPM) In normal driving conditions, 1972 Rover P5B should accelerate faster than 1959 AC Ace. With that said, vehicle weight also plays an important factor in acceleration. 1972 Rover P5B weights approximately 686 kg more than 1959 AC Ace. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1972 Rover P5B (295 Nm @ 3000 RPM) has 128 more torque (in Nm) than 1959 AC Ace. (167 Nm @ 4500 RPM). This means 1972 Rover P5B will have an easier job in driving up hills or pulling heavy equipment than 1959 AC Ace.
Compare all specifications:
| 1959 AC Ace | 1972 Rover P5B | |
| Make | AC | Rover |
| Model | Ace | P5B |
| Year Released | 1959 | 1972 |
| Body Type | Roadster | Coupe |
| Engine Size | 1971 cc | 3528 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 125 HP | 158 HP |
| Engine RPM | 6000 RPM | 5200 RPM |
| Torque | 167 Nm | 295 Nm |
| Torque RPM | 4500 RPM | 3000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Weight | 894 kg | 1580 kg |
| Vehicle Length | 3850 mm | 4750 mm |
| Vehicle Width | 1520 mm | 1790 mm |
| Vehicle Height | 1250 mm | 1480 mm |
| Wheelbase Size | 2290 mm | 2820 mm |
