Mario Kart 8 Deluxe sells 459,000 copies on launch day in US, fastest-selling Mario Kart in the US.

[Soundwave]

This is one benefit of having a rabid, older fanbase, you get better software sales more quickly.

Kinda reminds me a little of Mario Kart 64 which I believe for the time (1997) was the fastest selling game ever in the US.