This looks at engine and chassis cost by age group and notes a deep wallet may be needed. Engines named: Bambino C50, Bambino M1, Honda cadet, IAME cadet, Mini X30, MiniMax, Junior TKM, Junior X30, Junior Rotax, Senior X30, Senior Rotax, TKM Extreme, and KZ. Chassis named: IAME/Honda cadet Synergy, IAME cadet TonyKart, Honda cadet Project One, and for Mini X30, Junior X30, Junior Max, and Senior Max the Alonso, Exprit, Tony, Mad Croc, Xenon, Kart Republic, and Comp kart options, plus Bambino Synergy. Convert currency if you are outside the UK.