1958 AC Ace vs. 1991 Citroen ZX
To start off, 1991 Citroen ZX is newer by 33 year(s). Which means there will be less support and parts availability for 1958 AC Ace. In addition, the cost of maintenance, including insurance, on 1958 AC Ace would be higher. At 1,991 cc (6 cylinders), 1958 AC Ace is equipped with a bigger engine. In terms of performance, 1991 Citroen ZX (89 HP @ 6400 RPM) has 15 more horse power than 1958 AC Ace. (74 HP @ 4500 RPM) In normal driving conditions, 1991 Citroen ZX should accelerate faster than 1958 AC Ace. With that said, vehicle weight also plays an important factor in acceleration. 1991 Citroen ZX weights approximately 110 kg more than 1958 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, 1958 AC Ace (167 Nm) has 34 more torque (in Nm) than 1991 Citroen ZX. (133 Nm). This means 1958 AC Ace will have an easier job in driving up hills or pulling heavy equipment than 1991 Citroen ZX.
Compare all specifications:
| 1958 AC Ace | 1991 Citroen ZX | |
| Make | AC | Citroen |
| Model | Ace | ZX |
| Year Released | 1958 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 1991 cc | 1579 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 74 HP | 89 HP |
| Engine RPM | 4500 RPM | 6400 RPM |
| Torque | 167 Nm | 133 Nm |
| Number of Seats | 2 seats | 5 seats |
| Vehicle Weight | 890 kg | 1000 kg |
| Vehicle Length | 3850 mm | 4070 mm |
| Vehicle Width | 1520 mm | 1710 mm |
| Vehicle Height | 1250 mm | 1410 mm |
| Wheelbase Size | 2290 mm | 2430 mm |
