The result, combined with a fighting fourth place for Jake Hill, means the top three head to the final round at Brands Hatch separated by just seven points, with Sutton leading Hill by five and Ingram in third spot the further two points back.
Ingram started his Excelr8 Motorsport Hyundai i30 N from fourth on the grid, but found himself in the lead halfway around a turbulent opening lap.
