1973 Innocenti J4 vs. 1988 Saab 900i
To start off, 1988 Saab 900i is newer by 15 year(s). Which means there will be less support and parts availability for 1973 Innocenti J4. In addition, the cost of maintenance, including insurance, on 1973 Innocenti J4 would be higher. At 1,985 cc (4 cylinders), 1988 Saab 900i is equipped with a bigger engine. In terms of performance, 1988 Saab 900i (135 HP @ 5300 RPM) has 79 more horse power than 1973 Innocenti J4. (56 HP @ 5500 RPM) In normal driving conditions, 1988 Saab 900i should accelerate faster than 1973 Innocenti J4. With that said, vehicle weight also plays an important factor in acceleration. 1988 Saab 900i weights approximately 405 kg more than 1973 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, 1988 Saab 900i (172 Nm @ 3000 RPM) has 89 more torque (in Nm) than 1973 Innocenti J4. (83 Nm @ 2500 RPM). This means 1988 Saab 900i will have an easier job in driving up hills or pulling heavy equipment than 1973 Innocenti J4.
Compare all specifications:
| 1973 Innocenti J4 | 1988 Saab 900i | |
| Make | Innocenti | Saab |
| Model | J4 | 900i |
| Year Released | 1973 | 1988 |
| Engine Position | Front | Front |
| Engine Size | 1097 cc | 1985 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 56 HP | 135 HP |
| Engine RPM | 5500 RPM | 5300 RPM |
| Torque | 83 Nm | 172 Nm |
| Torque RPM | 2500 RPM | 3000 RPM |
| Engine Bore Size | 64.6 mm | 90 mm |
| Engine Stroke Size | 83.7 mm | 78 mm |
| Engine Compression Ratio | 21.5:1 | 10.1:1 |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Vehicle Weight | 880 kg | 1285 kg |
| Vehicle Length | 3720 mm | 4950 mm |
| Vehicle Width | 1540 mm | 1700 mm |
| Vehicle Height | 1380 mm | 1430 mm |
| Wheelbase Size | 2380 mm | 2720 mm |
