How fast would cars travel in 1930?

In the early 1900s, the average speed of a car was around 20-25 miles per hour (mph) on average roads, and could go higher on racetracks. By 1930, the average car speed had increased significantly, with many cars reaching speeds of 45-50 mph on good roads. Some high-performance cars of this era could even go faster, reaching speeds of over 60 mph. For reference, the average highway speed limit in the United States today (as of 2023) is 65-75 mph, depending on the specific highway.