1966 Innocenti J4 vs. 2005 Kia Optima
To start off, 2005 Kia Optima is newer by 39 year(s). Which means there will be less support and parts availability for 1966 Innocenti J4. In addition, the cost of maintenance, including insurance, on 1966 Innocenti J4 would be higher. At 2,360 cc (4 cylinders), 2005 Kia Optima is equipped with a bigger engine. In terms of performance, 2005 Kia Optima (138 HP @ 3800 RPM) has 82 more horse power than 1966 Innocenti J4. (56 HP @ 5600 RPM) In normal driving conditions, 2005 Kia Optima should accelerate faster than 1966 Innocenti J4. With that said, vehicle weight also plays an important factor in acceleration. 2005 Kia Optima weights approximately 638 kg more than 1966 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 Kia Optima (199 Nm) has 117 more torque (in Nm) than 1966 Innocenti J4. (82 Nm). This means 2005 Kia Optima will have an easier job in driving up hills or pulling heavy equipment than 1966 Innocenti J4.
Compare all specifications:
| 1966 Innocenti J4 | 2005 Kia Optima | |
| Make | Innocenti | Kia |
| Model | J4 | Optima |
| Year Released | 1966 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 1098 cc | 2360 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 56 HP | 138 HP |
| Engine RPM | 5600 RPM | 3800 RPM |
| Torque | 82 Nm | 199 Nm |
| Engine Compression Ratio | 9.0:1 | 10.0:1 |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 850 kg | 1488 kg |
| Vehicle Length | 3720 mm | 4730 mm |
| Vehicle Width | 1540 mm | 1820 mm |
| Vehicle Height | 1380 mm | 1420 mm |
| Wheelbase Size | 2380 mm | 2710 mm |
| Fuel Tank Capacity | 40 L | 65 L |
