F1 gossip: Horner, Wolff, Mercedes, Red Bull, McLaren, Raikkonen, Ricciardo

Formula 1

Red Bull were only fourth fastest on the final day of testing in Barcelona

Saturday, 10 March

Red Bull boss Christian Horner says opting to run a different fuel to engine supplier Renault is not a “strategic mistake” as Mercedes counterpart Toto Wolff has suggested.(PlanetF1.com)