Hello. How can i make this object with two wheels to slide on that track bend? (to follow the straight red line,turn at the bend and then continue straight again). What type of connection do i have to use? I tried the slot but the object followed the red line without turning via its axis at the bend(it has to be tangent to the bend). also is it possible to make the wheels spining while it is moving on the track? (like there was friction perhaps). Thank you very much.