I may be a little late to the party and this is old news, but just got a copy of a great reference book for Ford GT and GT40 enthusiasts, owners, etc. It's THE FORD GT, published in 2004 by the Society Of Automotive Engineers (SAE), on the development and build of the original GT40s and the Ford GT. Not a coffee-table book, it's softbound and has 250 pages of 18 published SAE papers starting with Roy Lunn's paper dating back to 1964. It's $89.95 from the SAE and members get a discount. Here's the link: http://books.sae.org/pt-113/