1970 Innocenti J4 vs. 2004 Mazda 3
To start off, 2004 Mazda 3 is newer by 34 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 1,595 cc (4 cylinders), 2004 Mazda 3 is equipped with a bigger engine. In terms of performance, 2004 Mazda 3 (104 HP @ 4000 RPM) has 48 more horse power than 1970 Innocenti J4. (56 HP @ 5500 RPM) In normal driving conditions, 2004 Mazda 3 should accelerate faster than 1970 Innocenti J4. With that said, vehicle weight also plays an important factor in acceleration. 2004 Mazda 3 weights approximately 360 kg more than 1970 Innocenti J4. 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, 2004 Mazda 3 (230 Nm @ 1750 RPM) has 147 more torque (in Nm) than 1970 Innocenti J4. (83 Nm @ 2500 RPM). This means 2004 Mazda 3 will have an easier job in driving up hills or pulling heavy equipment than 1970 Innocenti J4.
Compare all specifications:
| 1970 Innocenti J4 | 2004 Mazda 3 | |
| Make | Innocenti | Mazda |
| Model | J4 | 3 |
| Year Released | 1970 | 2004 |
| Engine Position | Front | Front |
| Engine Size | 1097 cc | 1595 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 56 HP | 104 HP |
| Engine RPM | 5500 RPM | 4000 RPM |
| Torque | 83 Nm | 230 Nm |
| Torque RPM | 2500 RPM | 1750 RPM |
| Engine Bore Size | 64.6 mm | 75 mm |
| Engine Stroke Size | 83.7 mm | 88.3 mm |
| Engine Compression Ratio | 21.5:1 | 18.3:1 |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Vehicle Weight | 880 kg | 1240 kg |
| Vehicle Length | 3720 mm | 4500 mm |
| Vehicle Width | 1540 mm | 1760 mm |
| Vehicle Height | 1380 mm | 1470 mm |
| Wheelbase Size | 2380 mm | 2650 mm |
