There's also a new Classic Min Prix, new Mirror Tracks for Knight League, a Recommended Challenges feature, and much more.
The free-to-play multiplayer racer will now allow you to create private lobbies and play with friends.
All five Knight League tracks are blanketed in snow, while Boost colors and Pilot Card customization options are available as rewards.
Presented in a 4:3 aspect ratio, the mode only has 20 players with Skyway and the Spin Attack removed and turbo boost being single-use.
Though still multiplayer, Classic Mode will see players participating in 20-player races with rules matching the original SNES title.
Mute City 2, Port Town 1, Red Canyon 1, White Land 2 and Death Wind 2 are coming tomorrow, with three more courses due in mid-October.
The racing classic returns as an online battle royale exclusive to NSO subscribers, as up to 99 players compete in a single race.