I already owned the original Speed Secrets and Speed Secrets 2 and was hoping to get a lot more insight into racing and high performance driving from this book titled "Ultimate Speed Secrets". Unfortunately, a lot of what Ross Bentley says in this new book is a copy and paste of the information in his old books. If you don't have any of his books, then I would recommend getting this one and foregoing all of the other books. If you already have the original Speed Secrets and Speed Secrets 2, then don't bother buying this one as it doesn't add much more.