Mat Jackson has clinched victory in the final Dunlop MSA British Touring Car Championship race of the day after a peerless display of defensive driving to hold off Sam Tordoff to the chequered flag.

The Motorbase Performance driver started from reverse grid pole position and was impressive in holding his lead into turn one over the RWD BMW of Rob Collard and the Subarus of Colin Turkington and Jason Plato.

However, though it was relatively clear the Ford Focus was not the quickest package compared with the 1-Series and Levorgs behind - despite a safety car period to clear the stricken MG of Ashley Sutton further back - Jackson was steadfast in his defence at every point on the Scottish circuit.

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Prior to the safety car, Turkington suffered as a result of the waved yellow flags after almost launching his way past Collard for second. The Subaru driver was forced to check back behind the BMW due to yellow zone.

Rather predictably, Jackson had his hands full immediately after the restart with both of the RWD challengers locked behind the Focus' bootlid. However, the race was turned on its head after Collard and Turkington sensationally collided towards the end of the eighth lap of the race.

Turkington almost pulled off his trademark move of the day at coming of Clark but ended up coming together with his former team mate.

With both title contenders out of contention, it promoted Sam Tordoff, Jason Plato and Gordon Shedden into second, third and fourth while Jackson enjoy a slight breather at the front.

It didn't take long for the leading quartet to bunch up as the home favourite Shedden moved himself into contention for a famous win.

Jackson, however, appeared stoic in defence as the trio behind all started to dispute the whereabouts of second position, making for an astonishing seven-car queue.

A huge tankslapper from Tordoff proved the final nail in the coffin for his chances of victory, as Jackson heroically held onto his fourth win of the season.

Tordoff and Plato completed the remainder of podium while Honda duo Shedden and Matt Neal finished fourth and fifth. Rob Austin prevailed over Adam Morgan to grab a strong sixth place finish with Aiden Moffat, Andrew Jordan and Jack Goff completing the top ten.

The result sees Tordoff swell his lead to nine points over Neal, with Collard now 32 points adrift, while Shedden and Jackson move ahead of Turkington.