Colton Herta says representing Cadillac on his grand prix weekend debut in Barcelona "meant a lot to me", as he revelled in the speed of a current Formula 1 car.On Friday, Herta took over Sergio Perez's car for the first of four planned FP1 outings. F1 teams are required to hand four first free practice sessions per year to a rookie, two per car, with Herta slated to conduct all four as he is ...Keep reading