His first BTCC drive was in a year-old MG ZS, sponsored by the pop group Atomic Kitten, partnering fellow Fiesta graduate Gareth Howell.

Despite the loss of official MG backing in 2004, he finished 6th in the 2004 Drivers' Championship, taking the second win of his BTCC career at Mondello Park.

A strong first half of the season made him the closest challenger to Matt Neal for the title,[2] although Jason Plato pipped him to 2nd in the Drivers' Championship in the final race of the year.

Turkington competed with WSR in the Brands Hatch and Macau rounds of the World Touring Car Championship in 2007.

After winning the championship with eBay Motors in 2014, Turkington switched to Team BMR for the 2015 season, driving alongside Jason Plato, Aron Smith and Warren Scott.

[7] In 2016, Team BMR announced a change of car to the Subaru Levorg, and after months of testing entered it into the 2016 season.

The team withdrew all four Subarus from the Thruxton round after an issue with the fuel line potentially causing fires.

For 2017, Turkington once again re-joined the outfit headed by Dick Bennetts; the source of his previous two championship victories.

He joined Andrew Jordan and Rob Collard in a trio of BMW 125i M Sports - the car was a development from when Turkington won the 2014 championship.

[9] Turkington collided with Matt Neal off the startline at the season opener at Brands Hatch, but salvaged a 9th-place finish in Race 2 from the back of the grid after a last-gasp move on Michael Epps.

[14] In October 2010, it was announced that Turkington and WSR would compete in the final two rounds of the WTCC in Japan and Macau.

For 2011, Turkington drove a BMW 320si in the Scandinavian Touring Car Championship for Flash Engineering, as teammate of Jan Nilsson.