Powell's Books is huge. It takes up an entire Portland, Oregon, city block and contains three stories of new and used books. Last time I was there, I spent almost half a day there. I was there so long, I took not one, but TWO bathroom breaks. I ended up with a Japanese-edition, super glossy book on the Citroen SM, Illustrated Motor Cars of the World (the first car book I remember reading as a child), and about eight British car buying guides from the 70s and 80s.
My copy even smells exactly the same as the copy I read as a child!
Well, I'm probably going to be up in Portland fairly soon. Before I liberate the store of more obscure car books, I'm graciously giving you guys a chance to peruse and buy its inventory of 1,227 used automotive books. Act fast.