1970 Innocenti J4 vs. 1983 Innocenti 990
To start off, 1983 Innocenti 990 is newer by 13 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 5 more horse power than 1983 Innocenti 990. (51 HP @ 5800 RPM). In normal driving conditions, 1970 Innocenti J4 should accelerate faster than 1983 Innocenti 990. With that said, vehicle weight also plays an important factor in acceleration. 1970 Innocenti J4 weights approximately 166 kg more than 1983 Innocenti 990. 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 8 more torque (in Nm) than 1983 Innocenti 990. (75 Nm @ 3200 RPM). This means 1970 Innocenti J4 will have an easier job in driving up hills or pulling heavy equipment than 1983 Innocenti 990.
Compare all specifications:
| 1970 Innocenti J4 | 1983 Innocenti 990 | |
| Make | Innocenti | Innocenti |
| Model | J4 | 990 |
| Year Released | 1970 | 1983 |
| Engine Position | Front | Front |
| Engine Size | 1097 cc | 993 cc |
| Engine Cylinders | 4 cylinders | 3 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 56 HP | 51 HP |
| Engine RPM | 5500 RPM | 5800 RPM |
| Torque | 83 Nm | 75 Nm |
| Torque RPM | 2500 RPM | 3200 RPM |
| Engine Bore Size | 64.6 mm | 76 mm |
| Engine Stroke Size | 83.7 mm | 73 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Vehicle Weight | 880 kg | 714 kg |
| Vehicle Length | 3720 mm | 3170 mm |
| Vehicle Width | 1540 mm | 1530 mm |
| Vehicle Height | 1380 mm | 1390 mm |
| Wheelbase Size | 2380 mm | 2050 mm |
