Summer Action Day brings a vibrant mix of modified, performance, and show cars to Castle Combe Circuit at the height of the season — a sun-soaked celebration of car culture in all its forms. The event features a vast array of eye-catching display cars, bustling paddocks, and hours of on-track action around the 1.85-mile Wiltshire circuit. Expect drifting displays, public track time, thousands of clubs and individual show cars, a lively trade village, and a whole summer festival atmosphere that makes this one of the most popular Action Days in the calendar.