Rallycross with Tanner

A youth in a hoodie fastens my seatbelt for me. He wrenches down pretty hard on the harness straps before placing my feet in the footwell for me. He says something about not kicking some important wires, but it's all a bit unclear because a) he's Swedish, b) I'm wearing a helmet, and c) a man called Tanner has just pressed an innocuous little starter button on the centre console of this ‘Ford Fiesta' and now I can't hear anything and my vision has gone slightly blurry.