Ratings and reviews are commonplace in the social media era, but the publishers of the 1940 Automobile Year Book and Buyer's Guide were setting some pretty high standards for consumer information. Posted on Hemmings, this guide included way more information than most folks would ever think necessary, either back then or even now. As the Hemmings' post noted:
Besides the pages shown, other charts compare all the 1940-spec cars’ batteries, bearings, body finish, brakes and weights, capacities, carburetors, clutches, head room, leg room, hoods, radiators, springs, ventilation, wheel bases, and a whole lot more. And even exhaust valve seat inserts and steering post locks are compared.