They spend the episode interviewing car salespeople and managers at one particular dealership over the course of a week (IIRC), where the salespeople are trying to rack up a certain number of sales to qualify for a bonus payout that means the difference between being in the red vs being in the black. They clear up some myths about car sales and generally get to the heart of what it's like to be a salesperson.
The things that were interesting to me were the various mindsets and tactics the salespeople use to sell a car, especially when they're desperate. The way the salespeople negotiate between two different parties – on one side with the customer, on the other side with their manager – was also something I hadn't thought about.
That's about the gist of it: a week in sales during a somewhat desperate situation from a car dealership's perspective. As a semi-regular podcast listener who really likes TAL but feels like they have some hits and some misses, this one is definitely a hit.