Racecoursebootsale.com - The Home of Cheltenham Racecourse Car Boot Sale & Market, Gloucestershire. Every Sunday all year round 9am to 1pm, sellers from 6am. Stratford Racecourse Car Boot Sale, Warwickshire, every Saturday 9am to 1pm, sellers from 6am. No need to book, just roll up from 6am onwards. Free admission to the public.