Given that Aston Martin has managed to design a more competitive car than Mercedes using their wind tunnel facilities, has the team been getting preferential treatment with power units too? The rumours were circulating after the Bahrain Grand Prix that Aston Martin had better engines than Mercedes, to ensure that there was still a competitive 'Mercedes team' on the podium. However, Red Bull advisor Helmut Marko has rubbished these rumours given the competition between the two car brands on the road. "Why should Mercedes make a competitor stronger?" he says to F1 Insider . "That makes no sense. Despite working…
