1959 AC Ace vs. 1956 Citroen DS
To start off, 1959 AC Ace is newer by 3 year(s). Which means there will be less support and parts availability for 1956 Citroen DS. In addition, the cost of maintenance, including insurance, on 1956 Citroen DS would be higher. At 1,971 cc (6 cylinders), 1959 AC Ace is equipped with a bigger engine. In terms of performance, 1959 AC Ace (125 HP @ 6000 RPM) has 50 more horse power than 1956 Citroen DS. (75 HP @ 4500 RPM). In normal driving conditions, 1959 AC Ace should accelerate faster than 1956 Citroen DS. With that said, vehicle weight also plays an important factor in acceleration. 1956 Citroen DS weights approximately 343 kg more than 1959 AC Ace.
Let's talk about torque, 1959 AC Ace (167 Nm @ 4500 RPM) has 30 more torque (in Nm) than 1956 Citroen DS. (137 Nm @ 3000 RPM). This means 1959 AC Ace will have an easier job in driving up hills or pulling heavy equipment than 1956 Citroen DS.
Compare all specifications:
| 1959 AC Ace | 1956 Citroen DS | |
| Make | AC | Citroen |
| Model | Ace | DS |
| Year Released | 1959 | 1956 |
| 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 | 125 HP | 75 HP |
| Engine RPM | 6000 RPM | 4500 RPM |
| Torque | 167 Nm | 137 Nm |
| Torque RPM | 4500 RPM | 3000 RPM |
| Engine Compression Ratio | 9.0:1 | 7.5:1 |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 894 kg | 1237 kg |
| Vehicle Length | 3850 mm | 4810 mm |
| Vehicle Width | 1520 mm | 1800 mm |
| Vehicle Height | 1250 mm | 1530 mm |
| Wheelbase Size | 2290 mm | 3130 mm |
| Fuel Tank Capacity | 59 L | 63 L |
