Are you a native speaker of English?It's all right.I can explain to you. I get a car.this is to say ,the car was a gift,was not what you bought I have a car. That car is your property.this is a fact. And This is only my private opinion.

I got a car (eg last month) = This is a PAST tense sentence and it means 'I ACQUIRED a car'. Maybe you bought the car, or received it as a gift, or maybe you won it in the lottery, but the emphasis is on the action of acquiring the car at some point in the past. By the way, Julane's comment about it having to be a gift, not a purchase, is incorrect. I have a car/ I've got a car = These have a PRESENT tense meaning, and would both translate as 'Yo tengo'. There is no difference in meaning at all in British English between these two sentences. In spoken British English, 'I've got' , and the question form 'Have you got ..?, is the more common of the two. Sometimes you don't hear the 'have', and when somebody says eg 'I've got a problem', you hear it as 'I got a problem'. Sometimes, especially in song lyrics, or transciptions of interviews, you actually see 'I got a problem' written down. This is considered to be incorrect English. So if you want to translate 'Yo tengo' into English, use 'I have' or 'I've got', but NOT 'I got'. Is that a bit clearer?

With "get" you have yet to obtain the subject, with "have" you already do. To take your examples: - "I have a car": in this sentence, the (I) person possesses the care. - "I get a car": in this sentence, the (I) person is going to receive a car. "Got" is entirely different, once again. It's the past tense of "having" ("to have") and is applicable to a past situation. An example of a similar situation would be "I got a car", where the (I) person previously received a car.