1958 AC Ace vs. 1989 Citroen XM
To start off, 1989 Citroen XM is newer by 31 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 2,975 cc (6 cylinders), 1989 Citroen XM is equipped with a bigger engine. In terms of performance, 1989 Citroen XM (170 HP @ 5600 RPM) has 96 more horse power than 1958 AC Ace. (74 HP @ 4500 RPM) In normal driving conditions, 1989 Citroen XM should accelerate faster than 1958 AC Ace. With that said, vehicle weight also plays an important factor in acceleration. 1989 Citroen XM weights approximately 424 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, 1989 Citroen XM (240 Nm) has 73 more torque (in Nm) than 1958 AC Ace. (167 Nm). This means 1989 Citroen XM will have an easier job in driving up hills or pulling heavy equipment than 1958 AC Ace.
Compare all specifications:
| 1958 AC Ace | 1989 Citroen XM | |
| Make | AC | Citroen |
| Model | Ace | XM |
| Year Released | 1958 | 1989 |
| Engine Position | Front | Front |
| Engine Size | 1991 cc | 2975 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 74 HP | 170 HP |
| Engine RPM | 4500 RPM | 5600 RPM |
| Torque | 167 Nm | 240 Nm |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 890 kg | 1314 kg |
| Vehicle Length | 3850 mm | 4720 mm |
| Vehicle Width | 1520 mm | 1800 mm |
| Vehicle Height | 1250 mm | 1400 mm |
| Wheelbase Size | 2290 mm | 2750 mm |
| Fuel Tank Capacity | 59 L | 80 L |
