In an era where lightweight, experience-first sports cars are few and far between, Ariel's face-ripper keeps the flame alive. It’s hard to believe, but the Ariel Atom turned 25 years old this year.

The Ariel Atom has long been one of the nuttiest, most track-focused cars on the planet, and 18 months ago, the small British manufacturer launched the 4R. This little beast uses the same engine as a ...