1956 AC Ace vs. 1975 Pontiac Firebird
To start off, 1975 Pontiac Firebird is newer by 19 year(s). Which means there will be less support and parts availability for 1956 AC Ace. In addition, the cost of maintenance, including insurance, on 1956 AC Ace would be higher. At 4,093 cc (6 cylinders), 1975 Pontiac Firebird is equipped with a bigger engine. In terms of performance, 1956 AC Ace (123 HP @ 6000 RPM) has 15 more horse power than 1975 Pontiac Firebird. (108 HP @ 3600 RPM). In normal driving conditions, 1956 AC Ace should accelerate faster than 1975 Pontiac Firebird. With that said, vehicle weight also plays an important factor in acceleration. 1975 Pontiac Firebird weights approximately 576 kg more than 1956 AC Ace.
Let's talk about torque, 1975 Pontiac Firebird (237 Nm) has 70 more torque (in Nm) than 1956 AC Ace. (167 Nm). This means 1975 Pontiac Firebird will have an easier job in driving up hills or pulling heavy equipment than 1956 AC Ace.
Compare all specifications:
| 1956 AC Ace | 1975 Pontiac Firebird | |
| Make | AC | Pontiac |
| Model | Ace | Firebird |
| Year Released | 1956 | 1975 |
| Body Type | Roadster | Coupe |
| Engine Position | Front | Front |
| Engine Size | 1971 cc | 4093 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 123 HP | 108 HP |
| Engine RPM | 6000 RPM | 3600 RPM |
| Torque | 167 Nm | 237 Nm |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 894 kg | 1470 kg |
| Vehicle Length | 3850 mm | 4880 mm |
| Vehicle Width | 1520 mm | 1870 mm |
| Vehicle Height | 1250 mm | 1290 mm |
| Wheelbase Size | 2290 mm | 2750 mm |
