This looked like a nice layout to work with for asymmetrical characters after relying on one that was provided in the KartKrew(?) Discord server which had been sent my way in private (no clue if they still have it there, I'm not part of the server).
While I can look past the fact it still uses the wrong framing for the signpost (rounded edges rather than a straight rectangle like it should've been (see discussion for more info)) there are a couple of frames, in particular the front for drifting (but only O and P) and more than half of the spinout frames (Q1-Q5) that come out *misaligned* by a pixel (which turns out to be a lot considering sprites are 80x80 in size).
I will have to give this a 1 star rating because, as a base, misalignment can lead to great errors, confusion and delays.