Has he a car or does he have a car?

Excuse me, could you clarify something for me? In the sentence "Has he a car or does he have a car?", I'm wondering if there's a difference in meaning between using "has" and "does have". Is one form more correct or preferred over the other in modern English usage? I've noticed that both versions seem to be used interchangeably at times, but I'm curious if there's a specific rule or convention that governs this situation. Thank you for your time and expertise.