The Atom 3.5 was introduced by Ariel in 2013 as an updated version of the Atom 3 lightweight sports car. This high performance, rear wheel drive, open top car incorporated improvements to the chassis, suspension and technology to optimize both performance and driving experience. Its versions were the SRA (race car), 3S, 3R and 3RS. With a manual transmission and a 2.0L or 2.4L inline four engine, the Atom 3.5 was positioned as one of the most refined cars of the Atom 3 generation, providing a perfect balance between extreme performance and updated technology for track and road riding enthusiasts. The Ariel Atom 3.5 was produced until 2020.