Turkington led teammate Jake Hill all the way, via two safety cars, to head a 1-2 for the West Surrey Racing-run BMW 330e M Sport squad.
In scorching conditions, Turkington led the field, and had just extended his advantage over Hill to over one second when the safety car was called for the first time on lap five, with the Power Maxed Racing Vauxhall Astra of Michael Crees in a vulnerable position on the exit of the Hamilton left-hander.
