1957 AC Ace vs. 1957 Rover P4
To start off, both 1957 AC Ace and 1957 Rover P4 were released in the same year (1957). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 2,636 cc (6 cylinders), 1957 Rover P4 is equipped with a bigger engine. In terms of performance, 1957 AC Ace (123 HP @ 6000 RPM) has 30 more horse power than 1957 Rover P4. (93 HP @ 4250 RPM). In normal driving conditions, 1957 AC Ace should accelerate faster than 1957 Rover P4. With that said, vehicle weight also plays an important factor in acceleration. 1957 Rover P4 weights approximately 536 kg more than 1957 AC Ace.
Let's talk about torque, 1957 Rover P4 (206 Nm @ 2500 RPM) has 39 more torque (in Nm) than 1957 AC Ace. (167 Nm @ 4500 RPM). This means 1957 Rover P4 will have an easier job in driving up hills or pulling heavy equipment than 1957 AC Ace.
Compare all specifications:
| 1957 AC Ace | 1957 Rover P4 | |
| Make | AC | Rover |
| Model | Ace | P4 |
| Year Released | 1957 | 1957 |
| Engine Position | Front | Front |
| Engine Size | 1971 cc | 2636 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 123 HP | 93 HP |
| Engine RPM | 6000 RPM | 4250 RPM |
| Torque | 167 Nm | 206 Nm |
| Torque RPM | 4500 RPM | 2500 RPM |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 894 kg | 1430 kg |
| Vehicle Length | 3850 mm | 4550 mm |
| Vehicle Width | 1520 mm | 1680 mm |
| Vehicle Height | 1250 mm | 1620 mm |
| Wheelbase Size | 2290 mm | 2830 mm |
| Fuel Tank Capacity | 59 L | 52 L |
