make a simple 3d car and a driving environment - long term position - Unity developer

You need to have done this a dozen of time at least. I need the car to have wheels respond to all interactions must have spring (adjustable value, bouncing adjustable) can use scripts but make sure there is nothing else in your script but the code for hydraulic of the wheels. the environment can be simple, prefabs please. wheels must have materials(wheel material). car is ok not to have material. white cube is fine. rather than streets, i want straight road, curvy at some points (bend scripts up and down and sometimes circle with curve) gravity adjustment possible. obstacles and damage counter (adjustable in panel) variables must be readable and editable by other developers. everything simple, please no copy paste other objects off internet. make your own object simple no artistic design needed. just get the logic right. W(accelerator) D(right)A()leftS(reverse) l(turbo). all variables adjustable. (please readable variables). This is a long term opportunity as there will be more work to it later. you can submit links to your files, so I can see what you made before. I need everything from scratch, you can use scripts but you have to make sure you delete whats not needed.