I've had the original first edition of Tom Sheppard's book (originally written for LR Experience)for some time. This new volume is considerably updated and includes not only lots of really good stuff on automatic drive train 4 x 4 vehicles, but is now also expanded to weigh-up the merits (or otherwise) of other 4 x 4 trucks. It covers a wide range of makes, and although it doesn't go into infinite detail on each one, it certainly gives enough information to help the prospective 4 x 4 buyer to make a choice depending on potential use. The sections on driving techniques are also updated, and I can see this book being useful to prospective and existing owners alike.