Here's how we got here:
1) Money buys political influence (duh!)
2) Most cities have small tax bases, where car dealerships are a very large part of the tax base. City managers want a larger tax base to help fund their plans.
3) Thus, car dealerships & local politicians have aligned incentives.
4) So, local laws (zoning, advertising, etc) favor car dealerships.
5) Higher offices are filled from the pool of local politicians, as they move up the food chain.
6) Those politicians remember their contacts @ the dealers, who helped fund/launch their careers, & they remain aligned with them in passing laws empathetic to dealer's interests.
Of course, legitimately, car dealerships have HUGE capital investments (fast aging inventory, large chunks of prime real-estate, staffing costs). Would YC ever want to get into the traditional dealer space? No friggen way. Too risky & doesn't scale.
And, nobody really buys a car without a test drive/showroom. So, nearly any "online" sale is cannibalizing the dealer's investments.
So, we need to have some kind of online buying system where you MUST enter in a dealer showroom code before buying, & they get some commission, as they DO offer real value here folks.
IMO, the whole consumer retail system is going to evolve into "showroom + online buying" in a fair system soon.