I have a '64 3-seater and recently bought some new 13" tires. They are Milestar 155 80R13 with a small whitewall. You can see some photos here: http://311s.org/phpBB3/viewtopic.php?f=2&t=17586&p=152062&hilit=bought+1500#p152062 Kumho makes a tire called Solus KR21 in the same size. Hope that helps, James Houston TX