I want to get into cars, and how to work with them, how do I start.?

Go on youtube and do a search using the year make and model of the vehicle and look up doing things like tune ups, brake jobs, antifreeze flushes, etc. There are hundreds of videos that teach you about cars and motorcycle maintenance and repairs.

I started by taking my parents' car apart when they were not looking. That did not end well for me. So, don't do that.

Buy a cheap car. Take it apart, and try to put it back together.

There is lots of information about how vehicles work available online and in print. You can start reading up on that if you wish and/or take auto class at your high school.

The recommendation of taking a lawnmower engine apart is a good idea as well. A lawnmower engine is very basic compared to a car engine but the fundamentals of the 4-stroke reciprocating engine is common to both.

You start with lawnmowers.

When you can take apart a lawnmower and put it back together and make in run just as well as it did before, you might be ready to move up to cars.

Its not easy, quick or cheap. And your hands get dirty. I still feel the pain of trying to remove a thermostat on my first car.

I still don't work on them beyond changing batteries & such, But I did deal them for a dozen years and made a decent living while doing it.

Buy a very cheap car and take it apart then put it back together and find out how it works.

no