19 Billon trucks
not enough
Estimates of 15.5 million trucks operate in the U.S.
a bunch There are 15.5 million trucks in the US and 2 million of them are tractor trailers according to Truck-Info
15.5 million trucks operate in the U.Sfrom: http:/truckinfo.net/trucking/stats.htm
well just in the us we looked at over 10227 trucks sold in 2005 in the usa
i heard 85 million
None. Truck classes in the US are numbered, not lettered.
16 million
Estimates of 15.5 million trucks operate in the U.S.
There is one and a half car for every US citizen
It is impossible to know exactly how many semi trucks are on the road in the U.S. It is estimated that there could be anywhere from five million to thirteen million semi trucks on the road in the U.S. on any given day.
Depends on how many illegal aliens... One truck per every illegal alien.