I love this engineering book, and I own several. But the thing is, I'm no engineer, and as one reviewer put it, this book is a pleasure to read.
The author sticks to the basics, and the version I have is a revision of an older work. But proof that his basics are down-to-pat, the theories haven't changed. He just updated the pictures and some anecdotes.
Full of useful information, a racecar engineer might want to delve deeper by getting more technical books, but this book is still full of the basics -- what's really important. And for the race car driver or car enthusiast, this book will help you understand more about vehicle dynamics, suspension, etc.
Overall, highly recommended.