IGN - Mario Kart 8, with Wii U and Switch sales combined (but mostly Switch), is officially the best-selling racing game in U.S. history, usurping the pole position from Mario Kart Wii.
![MARIO KART 8 CROSS PLAY WII U AN SWITCH -WII U VS SWITCH PLAYERS MK 8 SHOULD HAVE A CROSS PLAY - YouTube MARIO KART 8 CROSS PLAY WII U AN SWITCH -WII U VS SWITCH PLAYERS MK 8 SHOULD HAVE A CROSS PLAY - YouTube](https://i.ytimg.com/vi/RpalpQ65aBo/maxresdefault.jpg)
MARIO KART 8 CROSS PLAY WII U AN SWITCH -WII U VS SWITCH PLAYERS MK 8 SHOULD HAVE A CROSS PLAY - YouTube
![Another Game Gets Switch PS4 Xbox Cross Play And Mario Bros U Deluxe Sales Surprise | News Wave - YouTube Another Game Gets Switch PS4 Xbox Cross Play And Mario Bros U Deluxe Sales Surprise | News Wave - YouTube](https://i.ytimg.com/vi/3cwZZM8poMQ/maxresdefault.jpg)