1956 AC Ace vs. 1957 Citroen DS
To start off, 1957 Citroen DS is newer by 1 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 1,971 cc (6 cylinders), 1956 AC Ace is equipped with a bigger engine. In terms of performance, 1956 AC Ace (123 HP @ 6000 RPM) has 49 more horse power than 1957 Citroen DS. (74 HP @ 4500 RPM). In normal driving conditions, 1956 AC Ace should accelerate faster than 1957 Citroen DS. With that said, vehicle weight also plays an important factor in acceleration. 1957 Citroen DS weights approximately 426 kg more than 1956 AC Ace.
Let's talk about torque, 1956 AC Ace (167 Nm) has 30 more torque (in Nm) than 1957 Citroen DS. (137 Nm). This means 1956 AC Ace will have an easier job in driving up hills or pulling heavy equipment than 1957 Citroen DS.
Compare all specifications:
| 1956 AC Ace | 1957 Citroen DS | |
| Make | AC | Citroen |
| Model | Ace | DS |
| Year Released | 1956 | 1957 |
| Engine Position | Front | Front |
| Engine Size | 1971 cc | 1911 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 123 HP | 74 HP |
| Engine RPM | 6000 RPM | 4500 RPM |
| Torque | 167 Nm | 137 Nm |
| Engine Bore Size | 66 mm | 78 mm |
| Engine Stroke Size | 96 mm | 100 mm |
| Fuel Type | Gasoline | Gasoline |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 894 kg | 1320 kg |
| Vehicle Length | 3850 mm | 5000 mm |
| Vehicle Width | 1520 mm | 1800 mm |
| Vehicle Height | 1250 mm | 1540 mm |
| Wheelbase Size | 2290 mm | 3140 mm |
| Fuel Tank Capacity | 59 L | 63 L |
