Hardest games

[Dr. Boogie]

I used to get through them by just driving down the very center of the road to avoid cars, but once you got the cop car, it was just impossible.

[Girl Drink Drunk]

the Genesis vehicle parts were pretty simple up to the point you mentioned, but apparently for the SNES, the programmers must have decided that pulling off turns should be as insanely frustrating as possbile.

[Emu]

Final Fantasy 2. If you take a wrong turn, you can wander into an area that randomly spawns monsters that are way out of your league and get killed with surprising ease.