National Geographic does a very good documentry about the Design, Engineering and Assembly of the Veyron, I was blown away
Part 1:
http://www.youtube.com/watch?v=j6cyk9mQWM4&feature=related
Part 2:
http://www.youtube.com/watch?v=KhDtFQU3ZFc&feature=related
Part 3:
http://www.youtube.com/watch?v=8bUwwxZOcnE&NR=1
Part 4:
http://www.youtube.com/watch?v=C8rGSafyC_g&feature=related
Part 1:
http://www.youtube.com/watch?v=j6cyk9mQWM4&feature=related
Part 2:
http://www.youtube.com/watch?v=KhDtFQU3ZFc&feature=related
Part 3:
http://www.youtube.com/watch?v=8bUwwxZOcnE&NR=1
Part 4:
http://www.youtube.com/watch?v=C8rGSafyC_g&feature=related