Clarkson's Farm series 3 airs on Amazon Prime next month. It's the most watched show on Amazon Prime and series 4 has already been commissioned. The ex-Top Gear host asserts that his provocative image was merely a facade, and he has truly transformed into a better person enjoying a positive lifestyle. However, can ingrained behaviours be easily overcome? Charlotte Edwardes, feature writer and interviewer for the Guardian's Saturday magazine, asks the questions.