British F4 front-runner Lewis Wherrell steps up to GB3 for the Barcelona season finale, as part of a two-car line-up for the returning JHR Developments squad. 

The British driver finished third overall with JHR in British F4 this season, with three victories and eight additional podium finishes, as well as a double pole position at Snetterton. He took the title fight all the way down the final event of the year in his first full campaign of single-seater racing.  

Wherrell made an appearance in the GB4 season finale at the end of 2025 in addition to other single-seater outings in Spanish and Saudi Arabian F4, and before that was a hugely successful karting contender. He was ranked first in the FIA International Karting Rankings in 2023. 

He commenced his karting career aged just five at his local circuit, and is now firmly established as one of the UK’s leading contenders. He claimed his first title in 2021 as he became World Champion in the IAME Warriors X30 Mini division, and was runner-up in the British Kart Championship the same year.

A landmark year followed two years later, as he claimed the 2023 Champions of the Future crown in the OK Junior division, the WSK Champions Cup and the 51° Trofeo delle Industrie, along with further front-running performances in European and World Karting Championships.

Career history 

2026
British F4 Championship - third overall with three wins, eight further podiums and two pole positions

2025
GB4 Championship - three races
Saudi Arabian F4 Championship - fifth overall
Spanish F4 - three races

Pre-2025
Karting

2023
Champions of the Future OK Junior - champion
WSK Champions Cup - champion
51° Trofeo delle Industrie - champion

2021 - World Champion IAME Warriors X30 Mini division