Early 1900s US: Steam and electric cars outsell petrol (pre-1910)
In the first years of the American auto market, steam and electric cars actually outsold petrol vehicles. Gasoline's status was not yet settled.
The Ford Model T, cheap oil and the filling-station network made gasoline the default fuel within a decade.
Gasoline has been the top powertrain for over a century, making the 2026 milestone the first time it has lost that position.
This is the only prior period when gasoline was not the dominant car fuel. It frames how significant the 2026 data point is.
