How much of the US GDP is spent on the auto?

Question

How much of the US GDP is spent on the auto (excl. trucks) and related supporting industry like tires, fuel, roads, vehicles, accidents (medical & property), municipal services (police, fire, judicial), pollution (air, water and etc.) and everything else related to the auto?

Answer 1

I'm not sure if this is exactly what you're looking for, but a study done in 2001 may satisfy you:

http://www.osat.umich.edu/research/econo...

Answer 2

3.6%