Mario Kart 8 Deluxe is an undeniable global sensation. Not only was it the best-selling game on Nintendo's Wii U console, but it also became the top-selling game on the Switch with its Deluxe edition. Today, it's one of the highest-selling video games of all time, and Nintendo has managed to keep that success rolling by issuing waves of DLC, featuring new tracks and playable characters. Yet, in the face of all that success, there have been missed opportunities with the additional DLC. Additions that would not only make die-hard Nintendo fans happy but also bolster sales of other titles.
https://screenrant.com/mario-kart-8-luigis-mansion-dlc-haunted-track/