Highlights Iconic open-wheel race car for the road Desirable third-gen model with a good spec 245bhp inline four-cylinder Honda engine and six-speed manual gearbox Well-maintained Low mileage Recently serviced Long, advisory-free MOT Overview Once upon a time, if you wanted the ultimate track weapon then a Caterham was the obvious choice, but on the brink of the millennium Ariel exploded onto the scene with the Atom and things have never quite been the same since.

British through and through, the now iconic Atom is an open-wheel, street-legal race car.

It began life as a humble student project at Coventry University before evolving into one of the most revered and impressive performance machines of all time, setting the standard by which such cars are measured in the process, regardless of price.

Now onto its fourth generation, the Atom's stats have never been anything but extraordinary and whether you opt for the original 1.8-litre Rover K Series-equipped model or the latest Atom 4...