Marko does not deny Red Bull engine switch report 15 February, 2014 Helmut Marko In the aftermath of claims by former F1 team owner Gian Carlo Minardi that World Champions Red Bull could be shopping around for another engine supplier, the team’s outspoken motorsport adviser Helmut Marko has not denied the possibility. Reacting to Minardi’s comments, Marko told Sport Bild, “We have a long-term contract with Renault, which is of course linked to the performance. Nevertheless, we are together as one to solve the current problems.” Red Bull are said to be taking a heavily revised version of their RB10 to Bahrain tests, for Sebastian Vettel and Daniel Ricciardo, in an effort to resolve overheating issues which severely afflicted the team at Jerez. Renault have admitted that they have problems with their all new V6 turbo engine, but are confident that they are on track to resolving the issues which their customer teams experienced at the first test last month. (GP247) Subbed by AJN. Content on GrandPrix247.com by: staff & contributors, Reuters syndication, GMM service, Getty Images, Formula 1 teams, sponsors & organisations.