Just to inform you i had this problem with my verso s t spirit when it needed two replacement tyres after 20,000 service. The dealer was unable to locate any replacement tyres. I contacted a local tyre supplier who was also unable to source replacement tyres. I eventually had to replace all four tyres with a different size. The tyre replacements were 195/60-16 Nexus N6000. Toyota contributed the price of two tyres as a gesture of goodwill which was a very satisfactory outcome. I believe that the car handles better with these tyres than the original tyres.