The exception to the random drops is on Wii U, where DLC parts will be available automatically upon purchase. Parts will unlock at random every 30 coins collected on Switch (or per 50 coins collected on Wii U) which increases to 50 coins at the 500 coin milestone (or every 100 coins at the 1,000 coin milestone on Wii U). Kart Parts: On both platforms, all parts - whether bodies, wheels or gliders - will unlock as you collect Coins, which are littered on tracks during races.The Koopa Clown kart is new to the Switch version.
On Wii U, Mirror Mode is available once you complete all cups on 150cc, while 200cc is available as part of a free game update. A Boo, probably the sneakiest Item in Mario Kart, temporarily turns the racer who is using it completely invisible to all other opponents.The player themself sees their kart turn into a ghost, similar to the ones in Time Trials.While invisible, the racer cannot be hit by any Items whatsoever, and they are also not hindered by driving off-road. Modes: All modes unlock automatically on Switch.You'll need to unlock these gradually on Wii U by completing prior cups. Courses: The Switch version automatically unlocks all tracks from the get go, including the later added DLC.
On Wii U, a character will unlock at random upon each cup win, apart from DLC characters which are already available.