In 1975, there were approximately 130 million registered vehicles in the United States. This number reflects a period of significant growth in automobile ownership, as more families began to own cars. The increase in vehicle numbers was influenced by post-World War II economic expansion and the rise of the suburban lifestyle.
A busy road with many cars means traffic i would think that is the best awnser
Mercedes made many cars in 1975
1
80
Infinite
it is traffic
aprroximately 120,000 Cars were on the road in 1906 due to the records kept by the Car companies.
there were 200andyourface cars on the road
All vehicles currently on the road are used.
Around 4,200
Which roads in which country.
a lot