"I think anything I do, I have passion. If I don't have passion about it, I don't do it." - Signed: By Guenther Steiner. These are words no one doubts, as the Italian is now known as a jack-of-all-trades; a former Haas F1 team principal, reality TV star, analyst and author of the bestseller Surviving to Drive - and always with a smile and full of enthusiasm. His second book Unfiltered - about his years in Formula 1 - will be in bookstores from 10 October.