Kolles: I’m not crazy, I have balls
Kolles has a rather diverse past in Formula One, having led many of the lower ranked teams.
The 43-year-old has hit a stint at Jordan GP as the team's managing director during which he was widely criticized for his "hard-headed" approach.
And when the team became Midlands, Spyker and later Force India he remained in charged before at the end of 2009.
In February 2010 he was appointed team principal of HRT and still remains at the helm of the fledgling outfit.
Asked about his thoughts on his rival team boss or what they think of him, Kolles, who is qualified as a dentist, told motorline.cc: "I think others think that CK is crazy.
"I respect Bernie Ecclestone and he knows how much I respect him. And that's what counts."
Pressed as to why his rival bosses may think him 'crazy,', Kolles said: "I have balls – because I say and do what I think.
"Many of these gentlemen are only administrators and don't have balls. They are like bank clerks. That is the difference.
"And for that I'm called a madman or a lunatic or whatever. I do not know exactly but I can imagine they say: 'That Kolles again!' or something like that." Planet F1