1958 AC Ace vs. 1981 Mazda Cosmo
To start off, 1981 Mazda Cosmo is newer by 23 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 1,971 cc (6 cylinders), 1958 AC Ace is equipped with a bigger engine. In terms of performance, 1958 AC Ace (125 HP @ 6000 RPM) has 23 more horse power than 1981 Mazda Cosmo. (102 HP @ 5300 RPM). In normal driving conditions, 1958 AC Ace should accelerate faster than 1981 Mazda Cosmo. With that said, vehicle weight also plays an important factor in acceleration. 1981 Mazda Cosmo weights approximately 204 kg more than 1958 AC Ace.
Let's talk about torque, both vehicles can yield 167 Nm of torque. So under normal driving conditions, the ability to climb up hills and pull heavy equipment should be relatively similar for both vehicles.
Compare all specifications:
| 1958 AC Ace | 1981 Mazda Cosmo | |
| Make | AC | Mazda |
| Model | Ace | Cosmo |
| Year Released | 1958 | 1981 |
| Body Type | Roadster | Coupe |
| Engine Position | Front | Front |
| Engine Size | 1971 cc | 1970 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 125 HP | 102 HP |
| Engine RPM | 6000 RPM | 5300 RPM |
| Torque | 167 Nm | 167 Nm |
| Torque RPM | 4500 RPM | 3300 RPM |
| Engine Bore Size | 66 mm | 80 mm |
| Engine Stroke Size | 96 mm | 98 mm |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 894 kg | 1098 kg |
| Vehicle Length | 4010 mm | 4670 mm |
| Vehicle Width | 1520 mm | 1700 mm |
| Vehicle Height | 1270 mm | 1420 mm |
| Wheelbase Size | 2290 mm | 2620 mm |
