I want to if you buy a car and it is messing up can bring it back.

Unless your cotract allows for it to be returned, once you sign and pay, there is no "return" the car.

If they provided a warranty you can take it back for repair.

Was this a new car ? Used car ? From a dealer ?
Was it bought with a warranty or bought as is

Just bought a 97cryserl concord about to weeks ago and it is mess up I herd that there was a limt law that would let me bring it back in 30 days. But also they said that there was not a warranty but on my paper they did not check the box (as is).

There is no 30 day return on cars anywhere that I know of.

There should be several papers with a "bill of sale" if no where does it say "as is" you may try to ask them for the value of the repair, and try to sue them if they won't.

But one question will be, what or who did you have inspect the car before you bought it.

So I bought a 2005 volo like 4 mouths ago and it's transmission is going out and it won't pass smog I reading on this new law but don't know if I should go see the dealer.. any help?