1970 Innocenti J4 vs. 1977 Opel Monza
To start off, 1977 Opel Monza is newer by 7 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 2,968 cc (6 cylinders), 1977 Opel Monza is equipped with a bigger engine. In terms of performance, 1977 Opel Monza (180 HP @ 5800 RPM) has 124 more horse power than 1970 Innocenti J4. (56 HP @ 5500 RPM) In normal driving conditions, 1977 Opel Monza should accelerate faster than 1970 Innocenti J4. With that said, vehicle weight also plays an important factor in acceleration. 1977 Opel Monza weights approximately 517 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 1977 Opel Monza 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 1977 Opel Monza. 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, 1977 Opel Monza (248 Nm @ 4200 RPM) has 165 more torque (in Nm) than 1970 Innocenti J4. (83 Nm @ 2500 RPM). This means 1977 Opel Monza will have an easier job in driving up hills or pulling heavy equipment than 1970 Innocenti J4. 1977 Opel Monza has automatic transmission and 1970 Innocenti J4 has manual transmission. 1970 Innocenti J4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1977 Opel Monza will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1970 Innocenti J4 | 1977 Opel Monza | |
| Make | Innocenti | Opel |
| Model | J4 | Monza |
| Year Released | 1970 | 1977 |
| Engine Position | Front | Front |
| Engine Size | 1097 cc | 2968 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 56 HP | 180 HP |
| Engine RPM | 5500 RPM | 5800 RPM |
| Torque | 83 Nm | 248 Nm |
| Torque RPM | 2500 RPM | 4200 RPM |
| Engine Bore Size | 64.6 mm | 95 mm |
| Engine Stroke Size | 83.7 mm | 69.8 mm |
| Engine Compression Ratio | 21.5:1 | 9.4:1 |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Automatic |
| Vehicle Weight | 880 kg | 1397 kg |
| Vehicle Length | 3720 mm | 4730 mm |
| Vehicle Width | 1540 mm | 1730 mm |
| Vehicle Height | 1380 mm | 1350 mm |
| Wheelbase Size | 2380 mm | 2640 mm |
