Correct: I have no car. Though it's more usual to say: I do not have a car. I don't have a car. ... ... ... I wonder if there is some confusion resulting from knowing that subject nouns are plural in the present simple when talking about things that are generally true. For example: Cars are expensive. ... ... ... The other sentence is possible, in a different context. For example, two children are playing and talking... Boy: I don't like these dolls. Where are your toy cars? Girl: I have no cars. / I don't have cars. ... ... ... If you REALLY want to get into nuances, the form you used to negate is a dramatic style. For example: I have no friends! ...is more sad / dramatic than "I don't have friends." or I have no hope! ...is more sad / dramatic that "I don't have hope." This is getting into where language becomes literature (expressing creative personal meanings) and so this is my personal / subjective but "edukated" take on this :-)

I would say... I don't have a car. or I don't have any cars. You can say... I have no car or I have no cars. They are both correct depending on if you are referring to one or more than one. I think it soujnds better to say.. I don't have.. rather than ... I have no...

Hi, Bulent! I think you put the wrong question. I would have said so. On what car I drive? Answer. You drive a luxury car! Bulent! Вы изучаете русский. Я думаю вам будет интересн узнать, какие синонимы есть у слова "автомобиль".  Автомашина, машина, авто, колеса, колесо, тачка, железка, железо, автомобильчик, чемодан, шины, железный конь, жестянка, мотор, фургон, кабриолет ... Я надеюсь на "лучший ответ". Güle güle!

It all depends. If you want to say you have no cars of any kind you would us the plural version; “No cars”, However, if you are trying to say that you do not have “a” car you would say “no car” (singular).