Emulator used: BizHawk 2.8
Oops. By the way, even though this is a Saturn exclusive game I went by MARP rules where the settings have to be at whatever defaults are set upon loading the game. Thus there's no adjusting top speed. There are turns and tight maneuvers that require slowing down so adjusting top speed might actually be detrimental for maintaining a consistent coin chain.
Anyways I tried out the analog for this game and it works fine. Probably wouldn't need that for a TAS if all I'm going for is the fastest score counterstop. On the other hand, going for the largest bonus at the end (coins * time * 1000) would want finer adjustments. The problem is that I kinda forgot where that analog viewer lua file was so I just kinda manually did it with a controller. Thus the inputs are a terrible mess but this is a good baseline for both fastest coutnerstop and largest end bonus. I might get back to this later.