1971 Innocenti J4 vs. 2005 Rover 45
To start off, 2005 Rover 45 is newer by 34 year(s). Which means there will be less support and parts availability for 1971 Innocenti J4. In addition, the cost of maintenance, including insurance, on 1971 Innocenti J4 would be higher. At 1,994 cc (6 cylinders), 2005 Rover 45 is equipped with a bigger engine. In terms of performance, 2005 Rover 45 (148 HP @ 6500 RPM) has 92 more horse power than 1971 Innocenti J4. (56 HP @ 5500 RPM) In normal driving conditions, 2005 Rover 45 should accelerate faster than 1971 Innocenti J4. With that said, vehicle weight also plays an important factor in acceleration. 2005 Rover 45 weights approximately 460 kg more than 1971 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, 2005 Rover 45 (185 Nm @ 4000 RPM) has 101 more torque (in Nm) than 1971 Innocenti J4. (84 Nm @ 2500 RPM). This means 2005 Rover 45 will have an easier job in driving up hills or pulling heavy equipment than 1971 Innocenti J4. 2005 Rover 45 has automatic transmission and 1971 Innocenti J4 has manual transmission. 1971 Innocenti J4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Rover 45 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1971 Innocenti J4 | 2005 Rover 45 | |
| Make | Innocenti | Rover |
| Model | J4 | 45 |
| Year Released | 1971 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 1098 cc | 1994 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 56 HP | 148 HP |
| Engine RPM | 5500 RPM | 6500 RPM |
| Torque | 84 Nm | 185 Nm |
| Torque RPM | 2500 RPM | 4000 RPM |
| Engine Bore Size | 64.6 mm | 80 mm |
| Engine Stroke Size | 83.7 mm | 66.2 mm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Front | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Vehicle Weight | 880 kg | 1340 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 |
