GM beat Ford by selling cars as fashion, not durable goods

By the early 1920s Ford's Model T had made the standard playbook in the US auto industry explicit: build one durable, cheap, largely unchanging car and sell it once, competing purely on price and reliability. Ford's production scale on that single model dwarfed every rival combined, and no competitor could out-cheap or out-reliable a company that had already optimized a single design down to a science.

General Motors under Alfred P. Sloan Jr. concluded that fighting Ford on Ford's own axis was a losing proposition no matter how efficient GM's factories became. By the mid-1920s the US car market was also approaching saturation — most households that wanted a car already had one — so unit sales increasingly depended on getting existing owners to replace a car that still ran fine, something price and reliability competition couldn't do on its own.

Sloan restructured GM's lineup into a price ladder — Chevrolet, Pontiac, Oldsmobile, Buick, and Cadillac spanning low to high price points with deliberately overlapping tiers — so a buyer could move up within the GM family as their income grew instead of ever needing to look elsewhere. Alongside the ladder, Sloan introduced annual model-year styling and feature changes, concentrating visible design updates into yearly refreshes so a working car could look noticeably out of date next to the new model, giving owners a reason to trade in that had nothing to do with the car breaking down.

Opened a new axis: a price ladder across brands so buyers move up within GM, plus annual styling changes that made working cars look outdated, creating trade-in demand.

The price ladder kept buyers inside GM as they moved up income tiers, avoiding head-to-head price fights with Ford.

Annual styling changes made working cars look outdated, creating replacement demand in a saturated market.

Ford's single-model strategy couldn't compete on style or income progression, so GM forced the fight onto new terms.

When an incumbent owns the default axis, don't match them there; open a new axis that makes their advantage irrelevant.

Chevrolet overtook the Model T in the low-priced segment by 1927, forcing Ford to halt production and retool for the Model A — ceding continuous market presence to GM in the process — and GM went on to hold US auto sales leadership for decades, reaching $12.4 billion in sales by 1955, roughly double the next-largest company in the world at the time.