ok works on map too.
and with clicker, you can drive very smoothly. maybe you can implement? that holding MMB will continously update location of the marker.
car behaves different than tank, when trying to 180°;
tank goes back 90° then stears front 90° and keeps going.
car goes rear-gear all the way. should probably also do 2-point-inversion like tank
and the entire thing should stop functioning when speed reaches 0, because cliffs exist