Oliver Clarke makes racing return with Hillspeed in GB4 season finale Oliver Clarke makes racing return with Hillspeed in GB4 season finale Bas Kaligis / Wednesday, October 12, 2022 0 360 Article rating: No rating Title-contending GB4 Championship team Hillspeed has confirmed that talented British racer Oliver Clarke will make his return to competitive track action at the Donington Park season finale this weekend (15/16 October). Read more