2001 Ariel Atom vs. 1966 Innocenti J4
To start off, 2001 Ariel Atom is newer by 35 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 1,589 cc (4 cylinders), 2001 Ariel Atom is equipped with a bigger engine. In terms of performance, 2001 Ariel Atom (109 HP @ 5000 RPM) has 53 more horse power than 1966 Innocenti J4. (56 HP @ 5600 RPM). In normal driving conditions, 2001 Ariel Atom should accelerate faster than 1966 Innocenti J4. With that said, vehicle weight also plays an important factor in acceleration. 1966 Innocenti J4 weights approximately 390 kg more than 2001 Ariel Atom.
Because 2001 Ariel Atom 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 2001 Ariel Atom. However, in wet, icy, snow, or gravel driving conditions, 1966 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, 2001 Ariel Atom (148 Nm @ 3000 RPM) has 66 more torque (in Nm) than 1966 Innocenti J4. (82 Nm @ 2000 RPM). This means 2001 Ariel Atom will have an easier job in driving up hills or pulling heavy equipment than 1966 Innocenti J4.
Compare all specifications:
| 2001 Ariel Atom | 1966 Innocenti J4 | |
| Make | Ariel | Innocenti |
| Model | Atom | J4 |
| Year Released | 2001 | 1966 |
| Engine Position | Rear | Front |
| Engine Size | 1589 cc | 1098 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 109 HP | 56 HP |
| Engine RPM | 5000 RPM | 5600 RPM |
| Torque | 148 Nm | 82 Nm |
| Torque RPM | 3000 RPM | 2000 RPM |
| Engine Compression Ratio | 10.5:1 | 9.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 1 seats | 5 seats |
| Vehicle Weight | 460 kg | 850 kg |
| Vehicle Length | 3420 mm | 3720 mm |
| Vehicle Width | 1800 mm | 1540 mm |
| Vehicle Height | 1200 mm | 1380 mm |
| Wheelbase Size | 2350 mm | 2380 mm |
