1970 Innocenti J4 vs. 1978 Opel Rekord
To start off, 1978 Opel Rekord is newer by 8 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 1,978 cc (4 cylinders), 1978 Opel Rekord is equipped with a bigger engine. In terms of performance, 1978 Opel Rekord (100 HP) has 44 more horse power than 1970 Innocenti J4. (56 HP) In normal driving conditions, 1978 Opel Rekord should accelerate faster than 1970 Innocenti J4. With that said, vehicle weight also plays an important factor in acceleration. 1978 Opel Rekord weights approximately 240 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.
Because 1978 Opel Rekord 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 1978 Opel Rekord. However, in wet, icy, snow, or gravel driving conditions, 1970 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, 1978 Opel Rekord (148 Nm @ 3800 RPM) has 65 more torque (in Nm) than 1970 Innocenti J4. (83 Nm @ 2500 RPM). This means 1978 Opel Rekord will have an easier job in driving up hills or pulling heavy equipment than 1970 Innocenti J4.
Compare all specifications:
| 1970 Innocenti J4 | 1978 Opel Rekord | |
| Make | Innocenti | Opel |
| Model | J4 | Rekord |
| Year Released | 1970 | 1978 |
| Engine Position | Front | Front |
| Engine Size | 1097 cc | 1978 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 56 HP | 100 HP |
| Torque | 83 Nm | 148 Nm |
| Torque RPM | 2500 RPM | 3800 RPM |
| Engine Bore Size | 64.6 mm | 95 mm |
| Engine Stroke Size | 83.7 mm | 69.8 mm |
| Engine Compression Ratio | 21.5:1 | 9.0:1 |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Vehicle Weight | 880 kg | 1120 kg |
| Vehicle Length | 3720 mm | 4600 mm |
| Vehicle Width | 1540 mm | 1730 mm |
| Vehicle Height | 1380 mm | 1430 mm |
| Wheelbase Size | 2380 mm | 2670 mm |
