Marketplace went undercover at 10 car dealerships to investigate what salespeople are telling you about car financing. Are they revealing everything you need to know? And what are the techniques are they using to get you into a more expensive car? When we show our hidden camera to Ontario’s auto sales regulator, he calls some dealers’ advice misleading, troubling, and illegal. With new car sales in Canada nearing a record two million this year, you can't afford to miss this investigation.