1970 Innocenti J4 vs. 1968 Reliant Regal
To start off, 1970 Innocenti J4 is newer by 2 year(s). Which means there will be less support and parts availability for 1968 Reliant Regal. In addition, the cost of maintenance, including insurance, on 1968 Reliant Regal would be higher. At 1,097 cc (4 cylinders), 1970 Innocenti J4 is equipped with a bigger engine. In terms of performance, 1970 Innocenti J4 (56 HP @ 5500 RPM) has 27 more horse power than 1968 Reliant Regal. (29 HP @ 5000 RPM). In normal driving conditions, 1970 Innocenti J4 should accelerate faster than 1968 Reliant Regal. With that said, vehicle weight also plays an important factor in acceleration. 1970 Innocenti J4 weights approximately 425 kg more than 1968 Reliant Regal. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1968 Reliant Regal 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 1968 Reliant Regal. 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, 1970 Innocenti J4 (83 Nm @ 2500 RPM) has 37 more torque (in Nm) than 1968 Reliant Regal. (46 Nm @ 2500 RPM). This means 1970 Innocenti J4 will have an easier job in driving up hills or pulling heavy equipment than 1968 Reliant Regal.
Compare all specifications:
| 1970 Innocenti J4 | 1968 Reliant Regal | |
| Make | Innocenti | Reliant |
| Model | J4 | Regal |
| Year Released | 1970 | 1968 |
| Engine Position | Front | Front |
| Engine Size | 1097 cc | 700 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 56 HP | 29 HP |
| Engine RPM | 5500 RPM | 5000 RPM |
| Torque | 83 Nm | 46 Nm |
| Torque RPM | 2500 RPM | 2500 RPM |
| Engine Bore Size | 64.6 mm | 60.4 mm |
| Engine Stroke Size | 83.7 mm | 61 mm |
| Engine Compression Ratio | 21.5:1 | 7.5:1 |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Vehicle Weight | 880 kg | 455 kg |
| Vehicle Length | 3720 mm | 3440 mm |
| Vehicle Width | 1540 mm | 1490 mm |
| Vehicle Height | 1380 mm | 1450 mm |
| Wheelbase Size | 2380 mm | 1940 mm |
