Rob Huff made an instant impact on his full-time return to the Kwik Fit British Touring Car Championship at the weekend as he scored a brace of top 10 finishes at Donington Park. The Cambridge driver’s return to the United Kingdom’s premier motorsport series began in less than ideal circumstances on Saturday when he was not permitted to take part in qualifying due to his car not being in the pit lane by the allotted time. Faced with the prospect of starting on the back row of the grid, the former FIA World Touring Car Championship title winner underlined his credentials in race one with a char…