Very sorry for not having the right manner and thank you for your comment and suggestion.
As for the question, my teacher used to teach me that "has not" can be used instead of "does not". Is the sentence "Tom has not a car" grammatical?
Yes, it's grammatical, but as Rover_KE said it's not a natural-sounding sentence.
"Tom hasn't a car" is better but not very commonly used in modern English.