 In 1993 he started competing in the National Saloon Championship.He won four back-to-back titles from 1995, all with Nissans.He returned to the BTCC in 2000 for just two rounds at Oulton Park with a Nissan Primera in the newly introduced Class B.

Middlehurst now participates in the Historic Formula One Championship and has numerous race victories, including events at Oulton Park and Monaco.