Subaru's Ashley Sutton has turned the heat up in this season's British Touring Car Championship title race after securing his second win of 2017 at Croft.

The Adrian Flux Subaru Racing driver led the opener from start to finish to beat Team BMW's Colin Turkington by 0.671s after 15-laps.

Starting from pole position, Subaru's Sutton held the lead ahead of BMW's Turkington, while Motorbase Performance's Mat Jackson kept a watching brief behind the leading duo in third positon.

Despite being the only top contender to run the hard tyre during the first race, Sutton was able to keep Turkington at bay as the top-two began to pull away from Jackson's Ford Focus.

Although it looked as if Turkington was biding his time to make the decisive move on the Subaru, Sutton looked equally as comfortable in the lead, despite the BMW breathing down his neck.

However, Turkington gradually began to ramp up the pressure on Sutton to create a grandstand finish to the opening race.

Turkington appeared to be lining himself for a last-gasp attempt to beat Sutton to the line whilst exiting the last chicane. However the former double champion got out of shape on the marbles, which allowed the Subaru an unchallenged sprint to the line.

Jackson gave Motorbase reason to cheer on what has been a difficult weekend for the Ford squad by consolidating his position in third - a first podium finish of 2017 for the multiple race winner.

Team BMW's Rob Collard jumped to fourth ahead of reigning champion Gordon Shedden in the dying stages of the race, making further inroads on Shedden's championship lead.

BMW Pirtek Racing's Andrew Jordan recovered from his qualifying woes to finish a solid sixth ahead of MG's Josh Cook, Speedworks Motorsport's Tom Ingram and Vauxhall's Tom Chilton.

Subaru's Jason Plato recovered to finish in tenth despite falling off the track and down to 25th in the early stages of the race.