By what historical period was the dominance of the internal combustion engine largely secured as the default expectation for personal travel?

Answer

The time World War I approached

The true moment gas cars became the default expectation for personal, long-distance travel, securing the dominance of the internal combustion engine, was by the time World War I approached.

By what historical period was the dominance of the internal combustion engine largely secured as the default expectation for personal travel?
inventionHistoryAutomobilePopularitygasoline