Been playing 200cc and the new tracks for the last couple of hours and having a lot of fun! 200cc really is
fast and demands that you play the game significantly differently than you normally would on 150cc. It's super exhilarating and the speed feels great, but it can be frustrating when you totally screw up corners and fall off the track in areas that you know you can do perfectly with your eyes closed on 150cc.
The new tracks are mostly great, though Baby Park is kind of dull now and I'm not particularly feeling GBA Ribbon Road. Surprisingly, though, I'm really enjoying 3DS Neo Bowser City here even though it was among my least favorite tracks in
Mario Kart 7. Don't really know why that is, considering the track itself is mostly unchanged. I guess the gorgeous visuals help, but it just feels faster and more fun here for some reason.
By the way, for those of you who don't have some of the uncommon/rare amiibo but would like to see the costumes in action, I've been uploading demonstrations of some of them! Check 'em out if you want:
Mega Man
Sonic
Rosalina
Toad
Bowser (not rare, but hey)