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How many cars are currently in the US?

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Number of Cars in the US
According to the U.S. Department of Transpotation Statistical Records Office there are approximately 62 million registered vehicles in the U.S. at the current time and appox. 6.4 million unregistered functioning vechicles. Roughly 32% of those two numbers combined would account for Semi-Trucks, construction, heavy machinery vehicles. Stats accurate as of 02/01/05.  
There are actually more then 230 million vehicles in the US .. Not 143 million ..
 
There are 143,781,202 cars in the USA more or less obviously  Number of Cars in America
No one knows how many cars there are in America. Many are not registered and are stored, in salvage yards, and some just sitting idle. But, there are approximately 250 million registered vehicles on the road today. That figure includes all types of vehicles.
Approximately 16 million new vehicles are sold annually.
Here is an estimate using simple algebra
C: number of cars
P: number of people: P=305,541,491 as of 3 Jan 2009
C < P: the number of cars is probably less than the population of the United States, since only the rich have more than one car per family, and many families have no cars.
Cn = P where n is > 1 by the above reasoning
C = P/n (d'oh)
Let N = 5
The number of cars C is therefore 305,541,491/5=61,108,298
We figured this out before looking at the answer of "sixty-two million registered cars".
Pretty slick!

The answer for 2007 is 136 million cars, 110 million trucks, about 1 million buses for a total of 247 million registered vehicles.
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