1973 Innocenti J4 vs. 1968 Opel Diplomat
To start off, 1973 Innocenti J4 is newer by 5 year(s). Which means there will be less support and parts availability for 1968 Opel Diplomat. In addition, the cost of maintenance, including insurance, on 1968 Opel Diplomat would be higher. At 5,354 cc (8 cylinders), 1968 Opel Diplomat is equipped with a bigger engine. In terms of performance, 1968 Opel Diplomat (227 HP @ 4700 RPM) has 171 more horse power than 1973 Innocenti J4. (56 HP @ 5500 RPM) In normal driving conditions, 1968 Opel Diplomat should accelerate faster than 1973 Innocenti J4. With that said, vehicle weight also plays an important factor in acceleration. 1968 Opel Diplomat weights approximately 810 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.
Because 1968 Opel Diplomat 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 Opel Diplomat. However, in wet, icy, snow, or gravel driving conditions, 1973 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, 1968 Opel Diplomat (427 Nm @ 3000 RPM) has 344 more torque (in Nm) than 1973 Innocenti J4. (83 Nm @ 2500 RPM). This means 1968 Opel Diplomat will have an easier job in driving up hills or pulling heavy equipment than 1973 Innocenti J4. 1968 Opel Diplomat has automatic transmission and 1973 Innocenti J4 has manual transmission. 1973 Innocenti J4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1968 Opel Diplomat will be easier to drive especially in heavy traffic.
Compare all specifications:
1973 Innocenti J4 | 1968 Opel Diplomat | |
Make | Innocenti | Opel |
Model | J4 | Diplomat |
Year Released | 1973 | 1968 |
Engine Position | Front | Front |
Engine Size | 1097 cc | 5354 cc |
Engine Cylinders | 4 cylinders | 8 cylinders |
Engine Type | in-line | V |
Valves per Cylinder | 2 valves | 2 valves |
Horse Power | 56 HP | 227 HP |
Engine RPM | 5500 RPM | 4700 RPM |
Torque | 83 Nm | 427 Nm |
Torque RPM | 2500 RPM | 3000 RPM |
Engine Bore Size | 64.6 mm | 101.6 mm |
Engine Stroke Size | 83.7 mm | 82.6 mm |
Engine Compression Ratio | 21.5:1 | 10.5:1 |
Drive Type | Front | Rear |
Transmission Type | Manual | Automatic |
Number of Seats | 2 seats | 5 seats |
Vehicle Weight | 880 kg | 1690 kg |
Vehicle Length | 3720 mm | 4960 mm |
Vehicle Width | 1540 mm | 1910 mm |
Vehicle Height | 1380 mm | 1450 mm |
Wheelbase Size | 2380 mm | 2850 mm |