I just snatched a copy of this DK (Dorling Kindersley) book on Classic cars. Consistent with every other DK book that I've encountered, the quality is outstanding. Clear and concise text, and some awesome photography. At better than 300 pages, it's just crammed to the rafters with cool automotive "stuff".
(I was unsure of exactly where to put this, so this section of the forums, seemed good enough.)