1970 Innocenti J4 vs. 2006 Rover 45
To start off, 2006 Rover 45 is newer by 36 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 1,394 cc (4 cylinders), 2006 Rover 45 is equipped with a bigger engine. In terms of performance, 2006 Rover 45 (102 HP @ 6000 RPM) has 46 more horse power than 1970 Innocenti J4. (56 HP @ 5500 RPM) In normal driving conditions, 2006 Rover 45 should accelerate faster than 1970 Innocenti J4. With that said, vehicle weight also plays an important factor in acceleration. 2006 Rover 45 weights approximately 300 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.
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, 2006 Rover 45 (123 Nm @ 4500 RPM) has 40 more torque (in Nm) than 1970 Innocenti J4. (83 Nm @ 2500 RPM). This means 2006 Rover 45 will have an easier job in driving up hills or pulling heavy equipment than 1970 Innocenti J4.
Compare all specifications:
| 1970 Innocenti J4 | 2006 Rover 45 | |
| Make | Innocenti | Rover |
| Model | J4 | 45 |
| Year Released | 1970 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 1097 cc | 1394 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 56 HP | 102 HP |
| Engine RPM | 5500 RPM | 6000 RPM |
| Torque | 83 Nm | 123 Nm |
| Torque RPM | 2500 RPM | 4500 RPM |
| Engine Bore Size | 64.6 mm | 75 mm |
| Engine Stroke Size | 83.7 mm | 79 mm |
| Engine Compression Ratio | 21.5:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Vehicle Weight | 880 kg | 1180 kg |
| Vehicle Length | 3720 mm | 4370 mm |
| Vehicle Width | 1540 mm | 1700 mm |
| Vehicle Height | 1380 mm | 1400 mm |
| Wheelbase Size | 2380 mm | 2630 mm |
