car [at (0,0)] is going at a velocity of 1 in y direction. Every iteration, the speed is added. The car can turn 10° in each iteration... so it decides to turn 50 degrees. It completes this turn at (0,5).
Howver, if the car is going at a vel of 5, then it completes the turn at (0,25).
ist iteration: (0,5);
2nd iteration: (0,10);
...
4th iteration: (0,20);
5th iteration (0,25);
thus, it's like he can't turn as much by default.
~queasy.