Turkington again headed the line-up, joined by reigning Renault Clio Cup champion Tom Onslow-Cole. Also running a 320si was former Production class race winner and reigning SEAT Cupra Cup champion Mat Jackson, making his debut in the top class of the BTCC with his family Jacksons M.Sport team. Team Eurotech continued to run their ex-Dynamics Integra for team boss Mike Jordan for a second season, while Motorbase Performance abandoned their Integra and expanded to two ex-works Super 2000 SEAT Toledos, having run one in the closing rounds of 2006. Gareth Howell, who had raced a third Dynamics Integra in the latter stages of both 2005 and 2006, joined the team alongside former Clio Cup and British GT race-winner Matt Allison. Howell ran out of budget mid-season and was replaced first by Tom Ferrier, who had driven the car in 2006, and for the final round by ex-Vauxhall works driver Paul O'Neill. WTCC Independent squad GR Asia also ran a Toledo for their expansion into the British championship, missing two rounds when their WTCC commitments left them unable to attend. The car was piloted by Adam Jones who had an impressive debut season in the BTCC aboard Xero Competition's Lexus the previous year. The team then added a Leon to their stable for the final three meetings. Former works Vauxhall driver Gavin Smith was behind the wheel for the first two, being replaced in the final round by the returning Rob Collard, who had abandoned his planned switch to the Porsche Carrera Cup Great Britain earlier in the season after a handful of races. Quest Racing returned to the championship for a full campaign having joined the field in the second half of 2006, again fielding Irish youngster Eoin Murray in an ex-WTCC Alfa Romeo 156. The 156 was also the vehicle of choice for the brand-new A-Tech squad, with veteran David Pinkney joining the team from Motorbase alongside Richard Marsh, who had appeared in a Peugeot 307 for Team Griffin Racing the previous year. Other returning independents included Kartworld Racing, who expanded a second ex-WSR MG ZS, with Fiona Leggate joining the team to partner team boss Jason Hughes after two years in a bio-ethanol powered Vauxhall Astra Coupe with Tech-Speed Motorsport, and BTC Racing, who took in a full season with their Lexus IS200s after debuting in the final two rounds of 2006. Chris Stockton remained from the previous