Okay I've just used Kwik Fit. They were the cheapest for Goodyear Eagle F1, they matched the cheapest I could get online and they had them in stock plus they're five mins from my house. I was surprised to find they've had the latest Hunter alignment system fitted so I accepted the 'free' check. As it happens mine was absolutely bang on, the lad doing it talked through all the measurements and how they effect the car but obviously had nothing to do...unlike the A6 before mine that turned the screen red (there's live data on a screen in reception). For the first time, I was actually quite impressed with a tyre basher company.