“In the end, it was all about the car—designing, engineering, assembling, and selling a product that consumers wanted to own and drive.” So observes Bill Vlasic near the end of Once Upon a Car, his 379-page account of the recent “fall and resurrection” of the Detroit car manufacturers. Vlasic’s book is quite late to the party, following other journalistic accounts by Alex Taylor III and Paul Ingrassia and insider accounts by Steve Rattner and Bob Lutz. Can it possibly offer anything new? Is it worth reading? Yes, and yes. Yet Vlasic’s book also shares a fundamental weakness with the others, one all the more damning because of the above observation.