I am working on a new game and I found a problem, my scripting knowledges on Lua are very very small so I have this question how do I make a block that when a car touches it it destroys the car?
Do you mean a game where you hit something and the parts of the car start falling off? I have very little scripting knowledge but I might be able to think of something for that. If this is what you mean leave a comment and I will give you the best I can think of.
This isn't a request site. You need to have created a script, or ask about specific scripting methods, functions, properties, etc.
As far as methods go, for this question specifically, you could use:
Model:BreakJoints()
You would also use the Touched event.