I want to change these days to my summer tyres. At the moment I have the Fulda Carat Progresso 195/65 R15 91V on my 4 gulf. However, 2 pieces of it are broken (1.5mm profile) and the other two are still new from August 2008 (6.5mm profile) Since the Fulda Carat Progresso does not have the best test results, I consider whether I can get 2 other tires… Or would you rather take the Fulda again, so that all 4 tires are identical???