Existing contracts aren't structured as a lump sum they can just tack on some margin for and dealers don't fully control their margins. There's half a dozen "in

Existing contracts aren't structured as a lump sum they can just tack on some margin for and dealers don't fully control their margins. There's half a dozen "incentives" that are given as percentages of sale price plus whatever additional fees they can throw on that need to equal that margin. It's not that these are impossible problems, but they require coordinated action in an industry that's full of mutually hostile parties.