The card system is a new form of transaction where customers can transfer their money into credit balance in order to race in Speedy Karting. Unlike the "old" method of using a conventional transaction system, the card system rewards the customers more bonuses as they top up their credit balance. The cards are also given for free as the customers pay for the initial purchase to race in Speedy Karting. For more details about the pricing, check out our Pricing scheme.