http://www.eurospares.co.uk/partsListing2.asp?G=47 I've seen some wheels on the back of some Miuras that look wider than standard Miura wheels but not quite as wide as SV wheels. Is this the case or is it me just seeing things?How many different widths of Miura wheels were made? I've read that the P400 and P400S had 7" wheels all round and SV with 7" front and 9" at the back. Also if you look at the Miura wheels in the link above the wheels are 7.5" wide or are these just pattern wheels that are not made by Campagnolo?
http://www.lambocars.com/indexlist.htm I'm not saying you're wrong but I can't find anywhere where it says the front wheels on the SV are 7.5" wide. My sources say 7" wide. All info I can find says that all 4 wheels on P400 and P400S wheels were 7" wide and P400SV 7" Front and 9" Rear.
http://ferrarichat.com/forum/showthread.php?t=131246&page=374 Well SV front wheels are different too so they could be 7.5" wide. Look at post 7477.