The Caterham Superlight R300 is a model that has been reviewed and compared to other Caterham models, such as the Roadsport 175. It has been available in various forms over the years, with some outlets referencing a 2002 version and others mentioning upgrades or changes as recently as 2014. The Superlight R300's availability has also been noted in different regions, with some outlets reporting on its departure from certain markets.