http://driving.timesonline.co.uk/article/0,,22750-2359404,00.html
There really needs to be a sticky with regards to Leno's stance on ferraris. From what I hear (if you search you'll find some confirmation) he had a bad experience when trying to buy a Ferrari and said screw them and hasn't bothered ever since. Some one else will chime in shortly with more information.
check this one out, Also a link to another one inside http://ferrarichat.com/forum/showthread.php?t=113690&page=2&highlight=Leno