The true cost of owning a car

Here's something interesting: Edmunds.com ("where smart car buyers start") has a "True Cost to Own" calculator. You put in your make, model, year, etc. and it calculates the true cost of owning that car, which generally works out to about double the selling price. My only complaint is that for used cars it only goes back to 2003. In Oregon we keep our cars way longer than that.