1971 Innocenti J4 vs. 2005 Mazda 6
To start off, 2005 Mazda 6 is newer by 34 year(s). Which means there will be less support and parts availability for 1971 Innocenti J4. In addition, the cost of maintenance, including insurance, on 1971 Innocenti J4 would be higher. At 2,966 cc (6 cylinders), 2005 Mazda 6 is equipped with a bigger engine. In terms of performance, 2005 Mazda 6 (220 HP @ 4000 RPM) has 164 more horse power than 1971 Innocenti J4. (56 HP @ 5500 RPM) In normal driving conditions, 2005 Mazda 6 should accelerate faster than 1971 Innocenti J4. With that said, vehicle weight also plays an important factor in acceleration. 2005 Mazda 6 weights approximately 638 kg more than 1971 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, 2005 Mazda 6 (260 Nm) has 176 more torque (in Nm) than 1971 Innocenti J4. (84 Nm). This means 2005 Mazda 6 will have an easier job in driving up hills or pulling heavy equipment than 1971 Innocenti J4.
Compare all specifications:
| 1971 Innocenti J4 | 2005 Mazda 6 | |
| Make | Innocenti | Mazda |
| Model | J4 | 6 |
| Year Released | 1971 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 1098 cc | 2966 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 56 HP | 220 HP |
| Engine RPM | 5500 RPM | 4000 RPM |
| Torque | 84 Nm | 260 Nm |
| Engine Bore Size | 64.6 mm | 89 mm |
| Engine Stroke Size | 83.7 mm | 80 mm |
| Drive Type | Front | Front |
| Number of Seats | 2 seats | 5 seats |
| Vehicle Weight | 880 kg | 1518 kg |
| Vehicle Length | 3720 mm | 4750 mm |
| Vehicle Width | 1540 mm | 1790 mm |
| Vehicle Height | 1380 mm | 1450 mm |
| Wheelbase Size | 2380 mm | 2610 mm |
