QUOTE(threeve @ Feb 1 2006, 09:58 AM)

Just keep in mind that unless you pay off the balance before the end of the 0% promotion, you'll be liable for ALL the interest that would have accrued during that time. Sept is only 7 months away, and you have 17 payments left on the car. Unless you could pay the balance completely off by then, this may not be a great idea.
This is not correct for most standard credit cards (Visa, MasterCard, AMEX, and Discover), you are not liable for all interest that would have accrued if it's not paid off at the end of the promotion. What threeve is referring to are terms that many store branded credit cards use for promotional financing (like Best Buy, Home Depot, Sears or CompUSA, for example), but most (if not all, I've never heard of one) regular credit cards have no such terms for promotional rates.