Jan.9 (GMM/Inautonews.com) Porsche chief executive Matthias Muller has now added his confirmation to reports the German marque is not interested in entering formula one.

Already this week, the fabled Volkswagen-owned sports car company’s research and development chief Wolfgang Hatz said F1 “has never been an issue for us and won’t be.

“Le Mans is a more attractive environment for us — there are more and more competitors and we learn more about the production of road cars,” he told Auto Motor und Sport.

Now, Hatz’s boss Muller has nailed the lid on the total rejection of formula one by Porsche, who in 2015 will field drivers including Mark Webber and Nico Hulkenberg in the premier LMP1 prototype category at fabled Le Mans.

Referring to the three-year decision to enter Le Mans in 2014 rather than another top category like F1, he told DPA news agency: “We have not looked back once and we are perfectly happy.

“We think LMP1 is the future”, Muller said, adding that in contrast F1 appears to be “in more and more difficulty”.