Expedia is your one-stop shop for planning your entire getaway. Find the perfect car rental for your visit to Thunderhill Raceway Park, then add on hotels and flights to nab an incredible deal. Many car rental suppliers include free cancellation, so you don't have to worry about the cost if your plans suddenly change. Don't forget to join One Key™, our free travel rewards programme, to earn OneKeyCash™* on your car rental and other bookings. This can help you save on your next memorable adventure, whether that's a city getaway or an once-in-a-lifetime road trip! *Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.