1973 Fiat 128 vs. 1978 Pontiac Firebird
To start off, 1978 Pontiac Firebird is newer by 5 year(s). Which means there will be less support and parts availability for 1973 Fiat 128. In addition, the cost of maintenance, including insurance, on 1973 Fiat 128 would be higher. At 3,790 cc (6 cylinders), 1978 Pontiac Firebird is equipped with a bigger engine. In terms of performance, 1978 Pontiac Firebird (125 HP @ 3200 RPM) has 62 more horse power than 1973 Fiat 128. (63 HP @ 6000 RPM) In normal driving conditions, 1978 Pontiac Firebird should accelerate faster than 1973 Fiat 128. With that said, vehicle weight also plays an important factor in acceleration. 1978 Pontiac Firebird weights approximately 650 kg more than 1973 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, 1978 Pontiac Firebird (332 Nm @ 2000 RPM) has 249 more torque (in Nm) than 1973 Fiat 128. (83 Nm @ 4400 RPM). This means 1978 Pontiac Firebird will have an easier job in driving up hills or pulling heavy equipment than 1973 Fiat 128.
Compare all specifications:
| 1973 Fiat 128 | 1978 Pontiac Firebird | |
| Make | Fiat | Pontiac |
| Model | 128 | Firebird |
| Year Released | 1973 | 1978 |
| Engine Position | Front | Front |
| Engine Size | 1116 cc | 3790 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 63 HP | 125 HP |
| Engine RPM | 6000 RPM | 3200 RPM |
| Torque | 83 Nm | 332 Nm |
| Torque RPM | 4400 RPM | 2000 RPM |
| Engine Compression Ratio | 8.8:1 | 8.4:1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 820 kg | 1470 kg |
| Vehicle Length | 3820 mm | 4880 mm |
| Vehicle Width | 1570 mm | 1870 mm |
| Vehicle Height | 1320 mm | 1290 mm |
| Wheelbase Size | 2230 mm | 2750 mm |
