Car Physics Issue

So i have a few issues

  1. why is the bottom like that I’ve made a chassis before maybe i did something wrong
  2. The knuckle does NOT move the wheel

main issue is 2. I tried finding info on here and google but couldn’t find anything about using a knuckle for steering

the only thing that made the wheel move was if collisions were on but then it would glitch out if it was inside of the wheel and not really turning it just pushing it

here is the model
chassis.rbxm (11.3 KB)