ヨセミチ, the driveway-turn calculator

Why it surfaced

Enter the road width, garage opening and depth, overhang room, safety margin, and vehicle specifications; ヨセミチ then draws a turning path from the car’s published minimum turning radius. Its unusually practical caution is to put down a rope or stick and try the maneuver once, because the driveway remains a stronger test than the calculation.

A Japanese calculator that estimates whether a car can reverse into a garage in one maneuver, how many corrections it may need, and how much extra width would help.