GfK data exclusively seen by Tyres & Accessories shows that sales of exclusive brands account for 10.4 per cent of the 2007 UK car tyre replacement market. Based on the results of GfK’s ongoing research, this means 2.62 million of these tyres were sold in the market last year. GfK defines exclusive brands from the retail perspective, meaning tyres that are only available from one clear retail network such as Kwik-Fit’s Arrowspeed brand or ATS’s Riken.