Just had someone ask me about buying a car with a credit card and honestly, it's way more doable than most people think - but there's some real gotchas you need to know about.

So here's the thing: most dealers will let you charge part of the purchase to your card. When we got my husband's car, they capped us at $5,000. That's pretty standard because of the processor fees eating into their margins. Some dealers won't budge on this at all. Now, if you've got a card affiliated with the car brand - like a Lexus card for a Lexus - or you're using something like American Express's auto buying program, you've got a better shot at getting the whole thing approved on plastic.

But here's where it gets interesting. I actually bought my own car back in law school using balance transfer checks. Most people don't realize you can deposit those checks and use them for basically anything, not just paying off other debt. The real play? A lot of cards offer 0% interest for like 6 to 18 months on transfers. I got 12 months interest-free, which beat any auto loan rate I could find at the time.

Obviously there's a catch. Some cards charge around 3% to transfer the balance, and you better have the credit limit available. Plus if you're still carrying that balance when the promo rate expires, the regular interest rate will absolutely destroy you - we're talking way higher than any car loan.

Here's my real advice: only do this if you can actually pay it back. The rewards points might seem sweet, but they're nothing compared to what you'll owe in interest if you can't clear the balance. I've seen people get burned hard by this. Whether you're buying a car with a credit card for the points or using a balance transfer to snag that 0% deal, you need a real plan to pay it off before that promotional period ends.

If you can swing it though - meaning you've got the cash ready or a solid payoff timeline - buying a car with a credit card can actually be smart money. Just don't let the rewards fantasy turn into an interest nightmare.