What's the most overlooked part of buying a used car? If you ask Larry Kosilla, it's the pre-purchase inspection. Many a heartache could have been prevented, but for a proper, emotionless look-see before signing the check. Here's how to do it right.

On the first episode of the new season of /DRIVE CLEAN, Larry Kosilla takes prospective classic-car buyers through the process of scrutinizing and inspecting a target car. In this case, that car is a second-hand 964-series Porsche 911 Carrera 4, and the buyer in question (Larry) is admittedly obsessive.

And so, Larry documented the whole transaction from begin to end, and noted 10 actionable steps that will help you when buying a used car.

And if you go to Larry's site, AMMO NYC, you can get a free PDF Guide of the 10-Step Pre-Purchase Inspection. As always, post any questions and comments, and Larry will respond.