1958 AC Ace vs. 1972 AMC Ambassador
To start off, 1972 AMC Ambassador is newer by 14 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 6,571 cc (8 cylinders), 1972 AMC Ambassador is equipped with a bigger engine. In terms of performance, 1972 AMC Ambassador (255 HP @ 4600 RPM) has 130 more horse power than 1958 AC Ace. (125 HP @ 6000 RPM) In normal driving conditions, 1972 AMC Ambassador should accelerate faster than 1958 AC Ace. With that said, vehicle weight also plays an important factor in acceleration. 1972 AMC Ambassador weights approximately 813 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, 1972 AMC Ambassador (468 Nm @ 3300 RPM) has 301 more torque (in Nm) than 1958 AC Ace. (167 Nm @ 4500 RPM). This means 1972 AMC Ambassador will have an easier job in driving up hills or pulling heavy equipment than 1958 AC Ace.
Compare all specifications:
| 1958 AC Ace | 1972 AMC Ambassador | |
| Make | AC | AMC |
| Model | Ace | Ambassador |
| Year Released | 1958 | 1972 |
| Engine Position | Front | Front |
| Engine Size | 1971 cc | 6571 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 125 HP | 255 HP |
| Engine RPM | 6000 RPM | 4600 RPM |
| Torque | 167 Nm | 468 Nm |
| Torque RPM | 4500 RPM | 3300 RPM |
| Engine Bore Size | 66 mm | 105.6 mm |
| Engine Stroke Size | 96 mm | 93.4 mm |
| Engine Compression Ratio | 9.0:1 | 8.5:1 |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 894 kg | 1707 kg |
| Vehicle Length | 4010 mm | 5370 mm |
| Vehicle Width | 1520 mm | 1970 mm |
| Vehicle Height | 1270 mm | 1420 mm |
| Wheelbase Size | 2290 mm | 3110 mm |
