In the early 20th century, cars were big, heavy and difficult to drive. Pneumatic tires further increased steering resistance.
Nowadays, even the most petite driver needn’t struggle to turn the steering wheel. For that, we can thank Francis W. Davis, a Harvard-educated mechanical engineer, who invented hydraulic power steering in 1926.
The 1951 Chrysler Imperial sedan was the first commercially available passenger car &nbs... read more