No one will say...
All vehicles currently on the road are used.
2,277,199 as of June 2007 (see link).
A busy road with many cars means traffic i would think that is the best awnser
1
Infinite
it is traffic
80
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
a lot
Which roads in which country.
Around 4,200