Jun.21 (GMM/Inautonews.com) Red Bull Racing has ruled out switching to customer Ferrari power.

As the former champions’ troubled relationship with Renault continues to crumble, the speculation has been swirling around the paddock of the Red Bull Ring.

But team owner Dietrich Mateschitz played it down, arguing that being a mere ‘customer’ of a F1 rival “would never be good enough” to win more world titles.

After Mateschitz’s comments, however, Red Bull official Dr Helmut Marko had at least confirmed that an offer was made recently by Ferrari president Sergio Marchionne.

“Maybe there was a vague offer,” team boss Christian Horner has now told the German newspaper Bild am Sonntag.

“But Red Bull will definitely not be getting a customer engine from Ferrari.

“I do think it’s unlikely that, as a customer team, you could go all the way to the top, because you would always be receiving an inferior engine,” Horner added.