I have an Autoshop I created to help players understand what it might take to create an off-road vehicle capable of taking some larger bumps. While also allowing the player to attach the parts themselves and customize empty frames to suit their needs.
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=1926474627
Now all you need to do is exercise your mind to figure out how you want them to be attached and where power and seating will be at. For more complex parts like suspensions, you will be given instructions as how to properly attach them. Listed alongside that are suggested statistics that will help you determine limits on your vehicles for optimal build results.

Remember, tuning is key. Attach the parts you need, but optimize it for your needs.