The Ariel Atom is one of the most exciting ways to enjoy four wheels, as it's basically halfway between a race car and a motorcycle. These Atom models offer a hugely exciting driving experience thanks to an impressive power-to-weight ratio, and this one is equipped with the rev-happy Honda K20A 4-cylinder powerplant, which should make it especially fun to drive. This Atom also boasts a number of modifications intended to improve the performance even further. Not many of these were sold here, so it's sure to be a conversation starter everywhere you take it! I have another motor out of a type R to up the power if wanted. The vehicle has never been registered in Australia. It has always been used as a track car. There are others registered, so I guess this can be too.