The BTC-T MG ZS EX259 is a BTC-Touring class racing car that was built for the 2001 British Touring Car Championship season by West Surrey Racing, who ran MG's official works program.

[2] The new car's first appearance was in round 21, held at Silverstone, driven by Anthony Reid and Warren Hughes.

[3] Although ineligible to score points, the car showed some initial promise, with a victory at Brands Hatch Indy Circuit, the penultimate round of the season - indeed, it was the only non-Vauxhall entry to win in 2001.

[6] However, they were 151 points behind the Triple 8-entered Astra Coupes in the Manufacturers championship, as that team remained dominant.

With Turkington departing for VX Racing, and Reid being involved in an abortive MG entry for the 2005 DTM season,[12] WSR chose to enter a single car, driven by Rob Collard,[13] whilst Jason Hughes continued to enter his MG ZS, albeit at select events.