Look. There is no point in buying a car if you can’t afford to fill it with gas or pick your friends up in it to take them for a trip to Ikea. If you want to get a grip on those pesky little car payments and the way interest rates can eat into your Ikea lunch you might want to punch a few figures into this little calc. At the very least, if you do overspend on a car, go for a stationwagon so you can get all those Ikea goodies home!