Buying a new car in most of the United States means buying from an independent business rather than the manufacturer. The arrangement is a legal structure, not a logistical necessity.
Franchise laws created the separation
States enacted dealer franchise statutes to protect independent retailers from manufacturers that could otherwise open competing outlets or terminate agreements at will.
Those laws typically restrict a manufacturer from selling directly to consumers in states where it has franchised dealers, and they govern how and whether a franchise can be ended.
The rules are state law rather than federal, which is why direct sales are permitted in some states, restricted in others, and litigated repeatedly in between.
Dealers absorb inventory risk
Under the traditional model, a dealer purchases vehicles from the manufacturer, financing them through floorplan lending, and owns them until they are sold.
That structure moves inventory risk off the manufacturer's balance sheet and gives factories a stable order stream that supports steady production planning.
It also creates the pricing dynamic buyers encounter, since a dealer paying interest on unsold stock has a strong incentive to move an aging vehicle.
Service and warranty work is the other half
Franchised dealers perform warranty repairs and are reimbursed by the manufacturer, which gives the maker a nationwide service network it does not have to own.
Service and parts typically generate a large share of a dealership's profit, which is why the retail side can operate on thin margins.
Recall work runs through the same network, and its reach is one of the practical arguments made in defense of the existing structure.
Newer entrants pushed against the model
Manufacturers without an existing dealer network have argued that franchise protections should not apply to them, since there are no independent dealers to protect.
Legislatures and courts have answered inconsistently, producing a patchwork in which a buyer's options depend heavily on which state they live in.
Workarounds developed accordingly, including out-of-state purchases and delivery arrangements structured to comply with a particular state's definitions.
Agency arrangements sit in between
Some makers have moved toward fixed pricing with dealers acting closer to agents, taking a set fee rather than buying and reselling the vehicle.
This changes the negotiation experience while retaining the local business, and it interacts with franchise statutes in ways that are still being worked out.
Because the governing rules are state-specific and continue to change, what a buyer can do differs across state lines more than almost any other part of the purchase.