Stupidest version of this is in place (as in, adding enough opponent cars to take up all but one lane, without any thought for impossible scenarios yet) Add algorithm for generating opponent cars (think about impossible scenarios)
Add speed-up over time
Add accumulating score (may be placeholder but maybe not)
Revisit opponent placement and speed relationship (should I limit all opponents to the same speed to avoid impossible scenarios?)
Try more than lanes-1 opponents, but making sure to assign them always to at most n-1 of the n lanes? (How to track where the assignments are?)
Graphics
Add different colours for opponents for visual wonderment
Sound
Player engine (some ongoing buzzing)
Dicked around with this enough for now. It ain’t perfect that’s for fucking sure. Opponent engine(s) (doppler buzzing? pitch shifting? looks like it’s possible!)