The 26-year-old let rip at the luxury car marque in his new book, writing: “If you see someone driving a pickup, you can trust them. You know that if you follow them you’re going to end up at a good pub. But if you follow someone driving a Range Rover, you’ll probably end up down a back alley having your wheels stolen.”

The young farming contractor was brought in to assist Clarkson, 64, in running 1,000-acre Diddly Squat Farm in Oxfordshire – using his own expertise to try and teach…