I'm not talking web, I'm talking retail. People don't buy cars sight unseen.

Agree. Cars are an emotional purchase. The dealer motivated by profit serves a function in that process.

That is one of the reasons that by and large fixed pricing hasn't worked with autos as much as everyone seems to think that it's such a great idea.

Negotiation and "buy now" kicks people off of fences. (So does inventory and other factors to be sure..)

sure they do. Ebay.