In 2022 an RS Interclub license was £69, might be modest increase for 2023 No medical is required for this. Series registration fee was £30 in 2022. Entry fees for events range from about £100 to £150. If there are 2 rounds over a weekend that will cost double although some organisers offer a small discount if you enter for both days. You will need a minimum of an FIA roll bar and petty strut, you may already have this. No other major expense on the car until you get hooked and decide it is not fast enough! Personal safety equipment....Helmet, Race Suit, gloves. Cost about £600. Travel and accommodation for more far flung events, camping is usually allowed in the paddock which is the cheapest option. Have a read of this page as well: /competitors-area/competitor-home-page Give it a go!