1977 Ford Fiesta vs. 1970 Innocenti J4
To start off, 1977 Ford Fiesta is newer by 7 year(s). Which means there will be less support and parts availability for 1970 Innocenti J4. In addition, the cost of maintenance, including insurance, on 1970 Innocenti J4 would be higher. At 1,097 cc (4 cylinders), 1970 Innocenti J4 is equipped with a bigger engine. In terms of performance, 1970 Innocenti J4 (56 HP @ 5500 RPM) has 11 more horse power than 1977 Ford Fiesta. (45 HP @ 5750 RPM) In normal driving conditions, 1970 Innocenti J4 should accelerate faster than 1977 Ford Fiesta. With that said, vehicle weight also plays an important factor in acceleration. 1970 Innocenti J4 weights approximately 130 kg more than 1977 Ford Fiesta. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 1970 Innocenti J4 (83 Nm @ 2500 RPM) has 15 more torque (in Nm) than 1977 Ford Fiesta. (68 Nm @ 3700 RPM). This means 1970 Innocenti J4 will have an easier job in driving up hills or pulling heavy equipment than 1977 Ford Fiesta.
Compare all specifications:
| 1977 Ford Fiesta | 1970 Innocenti J4 | |
| Make | Ford | Innocenti |
| Model | Fiesta | J4 |
| Year Released | 1977 | 1970 |
| Engine Position | Front | Front |
| Engine Size | 957 cc | 1097 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 45 HP | 56 HP |
| Engine RPM | 5750 RPM | 5500 RPM |
| Torque | 68 Nm | 83 Nm |
| Torque RPM | 3700 RPM | 2500 RPM |
| Engine Bore Size | 74 mm | 64.6 mm |
| Engine Stroke Size | 55.7 mm | 83.7 mm |
| Engine Compression Ratio | 8.5:1 | 21.5:1 |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Vehicle Weight | 750 kg | 880 kg |
| Vehicle Length | 3650 mm | 3720 mm |
| Vehicle Width | 1590 mm | 1540 mm |
| Vehicle Height | 1330 mm | 1380 mm |
| Wheelbase Size | 2300 mm | 2380 mm |
