1956 AC Ace vs. 1991 Rover 820
To start off, 1991 Rover 820 is newer by 35 year(s). Which means there will be less support and parts availability for 1956 AC Ace. In addition, the cost of maintenance, including insurance, on 1956 AC Ace would be higher. At 1,994 cc (4 cylinders), 1991 Rover 820 is equipped with a bigger engine. In terms of performance, 1991 Rover 820 (180 HP @ 6000 RPM) has 57 more horse power than 1956 AC Ace. (123 HP @ 6000 RPM) In normal driving conditions, 1991 Rover 820 should accelerate faster than 1956 AC Ace. With that said, vehicle weight also plays an important factor in acceleration. 1991 Rover 820 weights approximately 514 kg more than 1956 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, 1991 Rover 820 (215 Nm) has 48 more torque (in Nm) than 1956 AC Ace. (167 Nm). This means 1991 Rover 820 will have an easier job in driving up hills or pulling heavy equipment than 1956 AC Ace.
Compare all specifications:
| 1956 AC Ace | 1991 Rover 820 | |
| Make | AC | Rover |
| Model | Ace | 820 |
| Year Released | 1956 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 1971 cc | 1994 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 123 HP | 180 HP |
| Engine RPM | 6000 RPM | 6000 RPM |
| Torque | 167 Nm | 215 Nm |
| Engine Bore Size | 66 mm | 84.5 mm |
| Engine Stroke Size | 96 mm | 89 mm |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 894 kg | 1408 kg |
| Vehicle Length | 3850 mm | 4890 mm |
| Vehicle Width | 1520 mm | 1740 mm |
| Vehicle Height | 1250 mm | 1400 mm |
| Wheelbase Size | 2290 mm | 2780 mm |
| Fuel Tank Capacity | 59 L | 68 L |
