RealCar V.1.2

This is an update of an already posted machine. And what did I do in it?
- Fixed some bugs with parts
- Improved control system
- Added braking system.
While fixing bugs, I decided to add a brake system, because during the tests the car moved when it was not necessary. It was funny... I didn't make a system that was too complicated, although it's possible to do it.
I wrote a small code for good control, now you can turn the engine on and off, as well as other commands.
AG 1 - saturation of revolutions,
AG2 - turn on / off the engine,
AG 3 - move forward on / off,
AG 4 - Brakes on / off,
to turn on the engine, just start the AG1 and she will turn it on herself, wait until the AG2 turns on and you can start moving forward, just do not forget to turn off the brakes. Good luck!