Be careful with inventory cars with options that may have no value for you.
For example, in New York our roads are so horribly maintained that you could not pay me to drive on 21" low profile wheels. So if I find an inventory car with the 21" wheels and let's say it also has the rear seat executive package, which again I'd have no use for as I don't have a chauffer, it would be an absolute waste of $6,500. And if you didn't want the Premium Interior Package that goes for an additional $3,500 and the inventory car has that option, we are now up to $10,000 of options that might be of no value to you and it would take an inventory discount of $10,000 to just break even. At that point might as well order a brand new car built just the way you want that has not been potentially subject to wear and tear of thousands of people getting in and out of the car and hundreds of people driving it like they stole it.
Inventory cars are a great deal when you find one with the options you want but they can be a horrible deal if it is laden with additional options that have little or no value to you. So when you consider an inventory car be careful to consider the cost of a car with just the options that are of value to you with the cost of the inventory car after the discount.
For example, if you are perfectly happy with a car with the options you find useful and it costs $115K then what's the point in paying $120K for an inventory car that cost $130 due to options you don't want even if it comes with a $10K discount because at the end of the day, you've just paid $5K more for a car that has been aggressively driven by hundreds of people.
In my opinion, for an inventory car to make sense financially, it should cost less than the cost of the car you want with the options you find of value. Even in this case I'd only consider an inventory car that offers at least a $6,000 discount compared to if you bought it new. If the discount is only about $3K I don't see the point.