1973 AC 428 vs. 1974 Fiat 128
To start off, 1974 Fiat 128 is newer by 1 year(s). Which means there will be less support and parts availability for 1973 AC 428. In addition, the cost of maintenance, including insurance, on 1973 AC 428 would be higher. At 7,002 cc (8 cylinders), 1973 AC 428 is equipped with a bigger engine. In terms of performance, 1973 AC 428 (298 HP @ 4600 RPM) has 235 more horse power than 1974 Fiat 128. (63 HP @ 6000 RPM). In normal driving conditions, 1973 AC 428 should accelerate faster than 1974 Fiat 128. With that said, vehicle weight also plays an important factor in acceleration. 1973 AC 428 weights approximately 610 kg more than 1974 Fiat 128. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1973 AC 428 (639 Nm @ 2800 RPM) has 556 more torque (in Nm) than 1974 Fiat 128. (83 Nm @ 4400 RPM). This means 1973 AC 428 will have an easier job in driving up hills or pulling heavy equipment than 1974 Fiat 128.
Compare all specifications:
| 1973 AC 428 | 1974 Fiat 128 | |
| Make | AC | Fiat |
| Model | 428 | 128 |
| Year Released | 1973 | 1974 |
| Engine Position | Front | Front |
| Engine Size | 7002 cc | 1116 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 298 HP | 63 HP |
| Engine RPM | 4600 RPM | 6000 RPM |
| Torque | 639 Nm | 83 Nm |
| Torque RPM | 2800 RPM | 4400 RPM |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1430 kg | 820 kg |
| Vehicle Length | 4430 mm | 3820 mm |
| Vehicle Width | 1710 mm | 1570 mm |
| Vehicle Height | 1310 mm | 1310 mm |
| Wheelbase Size | 2450 mm | 2240 mm |
