James Dorlin first came to winning ways in the Junior Saloon Car Championship in 2014 winning eight out of the 14 races. Only two years later would the then 16-year old lift a championship trophy once more triumphant in the Michelin Clio Cup Series UK taking victory in eight of the 15 races in this campaign.

2018 would see Dorlin come narrowly close to taking the crown in the Renault UK Clio Cup finishing second in the standings across the 19-race season.

Over the next years of his young career Dorlin would compete in a variety of series such as the Porsche Sprint Challenge Great Britain, Porsche Carrera Cup Great Britain, British GT Championship in both GT4 and GT3 categories.

2025 saw the then 25-year-old embark on his debut season in the BTCC, driving the Toyota Corolla GR Sport for TOYOTA GAZOO Racing UK with IAA, before his season was unfortunately cut short after the first seven events.

In 2026, Dorlin returns to the championship for Restart Racing, joining the Independent Champions of 2025, racing the Hyundai i30N.