wiremod car help

hello, I just learned how to use wiremod for making a car. I know most things in wiremod has A and B with right clicking but when I use b for it says break. I want a car that has realistic wheel turning. not using wire thrusters how do I do this? I want it to reverse. also, if you have mastered wiremod, how do I steer the wheels? I only know how to use thrusters for steering but I saw someone do it. how can he?
also, thanks for your attention