Looking on the internet deeply has found these results:

Have you a car? is the most popular phrase on the web.

what have you a car? 11 results on the web	Have you a car? 15,100 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
... dvd players, tooth brushes, dental floss, glasses, contact lenses and what have you. A car plant today is almost 100% automated. So are most other factories.	Jan 2, 2012 ... Alex thank you very much for your videos. I got a cuestion is correct to say have you a car? or I always have to use '" do"? Read moreShow less�... No I haven't. (Yes, I've got a car. No, I haven't got a car.) Do you have a car? Yes I do. No I don't. Have you a car? "Have you a car?" is a technically correct sentence, but, at least in the United States, it is not idiomatic and will sound strange to most listeners. The idiomatic�... Nov 16, 2013 ... When I began to study English, about 50 years ago, I was taught to ask, for instance, 'Have you a car?' and, if the answer was negative,�... Yes I have. No I haven't.

what have you a car?

11 results on the web

Have you a car?

15,100 results on the web

More popular!

... dvd players, tooth brushes, dental floss, glasses, contact lenses and what have you. A car plant today is almost 100% automated. So are most other factories.

Jan 2, 2012 ... Alex thank you very much for your videos. I got a cuestion is correct to say have you a car? or I always have to use '" do"? Read moreShow less�...
No I haven't. (Yes, I've got a car. No, I haven't got a car.) Do you have a car?
Yes I do. No I don't. Have you a car?
"Have you a car?" is a technically correct sentence, but, at least in the United States, it is not idiomatic and will sound strange to most listeners. The idiomatic�...
Nov 16, 2013 ... When I began to study English, about 50 years ago, I was taught to ask, for instance, 'Have you a car?' and, if the answer was negative,�...
Yes I have. No I haven't.