So 8 kph is 1 tile/turn. The limit of your vision is 60 tiles, which means you can’t really go more than 480 kph. The sine of 15 degrees is ~0.25, which means for that for every 32 kph of forward motion, you move 1 tile to the left or right if you’re just slightly turned off from moving in a cardinal direction. So if you’re driving down the center of a road through the forest and turn 15 degrees to avoid an upcoming car, at more that about 384 kph, you’re going to drift 12 tiles off the road and run into the forest. That’s the best case if you’re on a 1 tile wide motorcycle, since each tile of vehicle width reduces that speed by ~48 kph.
Based on data I collected for the vehicle speed rework, most people don’t like traveling about 12-15 tiles/turn. 200 kph is 25 tiles/turn, and 6 tiles of drift for turning 15 degrees, so it’s pretty reasonable that most people can’t handle that.
There’s a vague plan (as in, it’s something the developers want to do but don’t know how to do) that will involve automatic navigation between known points, and that will allow for much faster travel than what you could manage by yourself.
