this is the most simple track idea I came up with, simple yet semi-realistic behavior from a track system
feel free to further improve it for your own personal usage
it should work fine as it is

how it works:
each wheel is connected to the block bellow
all wheels have suspension enabled
all blocks move freely but are affected by the wheels suspension so they kinda mimic the way a track moves
wheels are scaled down but increase in size by their own slider therefore creating the illusion that they are not in contact with the ground (game physics still think they are spite they floating mid-air)

controls: yaw and VTOL

the whole idea was to create realistic or semi-realistic tracks for mobile users but its almost impossible to make one that is not below 200 parts
now i am not sure how strong are average phone as i never played on a phone but having 200 parts just for a track seems a lot to me

**Now I have to admit I have more than a few ideas on how to build a track system but they will take a lot of time that I don't have and also I am kinda hoping for the devs to add a simple track part anyway so i am just putting this out for provoking your creativity