1968 Innocenti J4 vs. 1991 Opel Astra
To start off, 1991 Opel Astra is newer by 23 year(s). Which means there will be less support and parts availability for 1968 Innocenti J4. In addition, the cost of maintenance, including insurance, on 1968 Innocenti J4 would be higher. At 1,597 cc (4 cylinders), 1991 Opel Astra is equipped with a bigger engine. In terms of performance, 1991 Opel Astra (100 HP @ 5600 RPM) has 43 more horse power than 1968 Innocenti J4. (57 HP @ 5500 RPM) In normal driving conditions, 1991 Opel Astra should accelerate faster than 1968 Innocenti J4. With that said, vehicle weight also plays an important factor in acceleration. 1991 Opel Astra weights approximately 166 kg more than 1968 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, 1991 Opel Astra (135 Nm @ 3400 RPM) has 53 more torque (in Nm) than 1968 Innocenti J4. (82 Nm @ 2000 RPM). This means 1991 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 1968 Innocenti J4.
Compare all specifications:
| 1968 Innocenti J4 | 1991 Opel Astra | |
| Make | Innocenti | Opel |
| Model | J4 | Astra |
| Year Released | 1968 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 1098 cc | 1597 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 57 HP | 100 HP |
| Engine RPM | 5500 RPM | 5600 RPM |
| Torque | 82 Nm | 135 Nm |
| Torque RPM | 2000 RPM | 3400 RPM |
| Engine Bore Size | 64.6 mm | 79 mm |
| Engine Stroke Size | 83.7 mm | 81.5 mm |
| Engine Compression Ratio | 9.0:1 | 9.8:1 |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 3 doors | 5 doors |
| Vehicle Weight | 850 kg | 1016 kg |
| Vehicle Length | 3720 mm | 4060 mm |
| Vehicle Width | 1540 mm | 1690 mm |
| Vehicle Height | 1380 mm | 1430 mm |
| Wheelbase Size | 2380 mm | 2530 mm |
| Fuel Tank Capacity | 40 L | 75 L |
