1968 Fiat 125 vs. 1966 Innocenti J4
To start off, 1968 Fiat 125 is newer by 2 year(s). Which means there will be less support and parts availability for 1966 Innocenti J4. In addition, the cost of maintenance, including insurance, on 1966 Innocenti J4 would be higher. At 1,608 cc (4 cylinders), 1968 Fiat 125 is equipped with a bigger engine. In terms of performance, 1968 Fiat 125 (90 HP @ 5600 RPM) has 34 more horse power than 1966 Innocenti J4. (56 HP @ 5600 RPM). In normal driving conditions, 1968 Fiat 125 should accelerate faster than 1966 Innocenti J4. With that said, vehicle weight also plays an important factor in acceleration. 1968 Fiat 125 weights approximately 110 kg more than 1966 Innocenti J4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1968 Fiat 125 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1968 Fiat 125. However, in wet, icy, snow, or gravel driving conditions, 1966 Innocenti J4, being front wheel drive (FWD), will offer much better control with better grip. 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, 1968 Fiat 125 (131 Nm @ 4000 RPM) has 49 more torque (in Nm) than 1966 Innocenti J4. (82 Nm @ 2000 RPM). This means 1968 Fiat 125 will have an easier job in driving up hills or pulling heavy equipment than 1966 Innocenti J4.
Compare all specifications:
| 1968 Fiat 125 | 1966 Innocenti J4 | |
| Make | Fiat | Innocenti |
| Model | 125 | J4 |
| Year Released | 1968 | 1966 |
| Engine Position | Front | Front |
| Engine Size | 1608 cc | 1098 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 90 HP | 56 HP |
| Engine RPM | 5600 RPM | 5600 RPM |
| Torque | 131 Nm | 82 Nm |
| Torque RPM | 4000 RPM | 2000 RPM |
| Engine Compression Ratio | 8.8:1 | 9.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 960 kg | 850 kg |
| Vehicle Length | 4230 mm | 3720 mm |
| Vehicle Width | 1610 mm | 1540 mm |
| Vehicle Height | 1450 mm | 1380 mm |
| Wheelbase Size | 2430 mm | 2380 mm |
| Fuel Tank Capacity | 45 L | 40 L |
