Will Palmer, brother of Lotus F1 third driver Jolyon, has been crowned 2015 Duo BRDC Formula 4 champion on the penultimate round of the season at Donington Park.

The BRDC Rising Star notched up his ninth and tenth race wins of the year and now holds an unassailable lead with one round remaining at Brands Hatch.

Palmer, who is son of former F1 driver and head of MotorSport Vision Jonathan, has an incontestable 119-point lead over his HHC Motorsport team-mate Harrison Newey - son of Red Bull design chief Adrian - with just 95 points available at the final round of the season.

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The new champion was handed his title-clinching trophy by 2014 BRDC Formula 4 champion George Russell and was thrilled to clinch the title with a round to spare.

"I am delighted. It's amazing after a year of hard work to finally take the crown and it is even better to do it in style, and a round early too," Palmer said. "Getting my 10th win sums up my season as it has been amazing, especially since Silverstone. I am absolutely delighted that we've been able to be as dominant as we have been this year."