How about the Leopard 1 series? They look different from the Leopard 2 series and quite a few countries had them.
http://www.google.com/search?q=leop...oICADA&sqi=2&ved=0CAcQ_AUoAA&biw=1680&bih=917
http://www.google.com/search?q=leop...oICADA&sqi=2&ved=0CAcQ_AUoAA&biw=1680&bih=917