200cc is the fastest engine class in the Mario Kart series to date. However, it is only playable in Mario Kart 8, Mario Kart 8 Deluxe, and Mario Kart Tour and was released in a free update on April 23, 2015. 200cc requires and takes more skill and technique than all classes according to Nintendo.
Being the largest engine class, vehicles in Mario Kart 8 are now able to exceed 100km/h.
In Mario Kart 8 Deluxe, completing 200cc is compulsory to unlock Gold Mario. Also, 200cc Time Trials are introduced in the game.
In Mario Kart Tour, 200cc is only playable if you get the Gold Pass. (a.k.a the game's subscription)