can I buy a car with my credit card

Sure. At a manufacturers dealer anyway. This I know because I did it, paying it off in 18 months I paid no interest

yes, if the cost of the car is lower than your card's limit- you can just whip out the card and buy it like a candy bar- but most people will be paying a lot of interest- I don't know how Mr. Nut got thru without paying any interest- NONE??!! he must be a solid American consumer with more financial integrity than me- you go, Mr. Nut!!!!

American Express offers no intrest on set up purchases for a small fee. But there is still a fee.

Sometimes when you get a new credit card they give you 12-15 months of no interest on all purchases. I plan on doing the same.