Hi I am new to the forum and joined after buying my first Williams a couple of weeks ago. I am loving the car and how much fun to drive it is compared with other more expensive cars. I have a list of things to do and tyres are on the list with an MOT at the end of the month. Currently my car has Yokohama 195/45/R15's yet flicking through the Williams owner manual, it lists 185/55/R15's. Please can you advise me on the best tyres and the correct sizing. One of the other things on the list is a new rear exhaust as mine has a big hole in it and its heavily corroded. Would you opt for the Renault factory item or a stainless??Thanks a lot