My last company car was contracted with Kwik-Fit for tyres, it was the only reason I took it to them. The two rears needed replacing after 55,000 miles, and rather than replaced the recommended original brand as I requested, they fitted tyres which were not approved by BMW. This was not the main problem, however: the left was pumped to 22psi, the right to 48 psi. (Add the two together and you get the correct 34psi inflation pressure). Immediately I knew somthing was wrong, then when I got to just 50mph, the car went into a massive fishtail. When I brought my car back Kwik-Fit and complained, they didn't even apologise, juist said "let me check it, all done, there you go". BMW confirmed that the tyres Kwik-Fit put on should never be fitted to that car and it remained unstable until I replaced them at a different (indedependent) tyre shop at my own cost. Previously, they've replaced tyres (just 3 months old and covered 7,000 miles) which still had 6mm of tread - they claimed that they are bald. Although the cost was covered by the lease company, I complained. Kwik-Fit made up some excuse and said I didn't know what I was talking about. I asked them to make the same checks on brand new tyres; lo and behold I their measurements were the same on new tyres as they were on mine, but they had charged the lease company and there was nothing I could do about it. If that had been my own money, I'd have them in court for fraud.