might not be considered a "Privilege" the driving of any type of motor vehicle upon it is. The court's have constantly upheld this violation of our Constitutional rights by declaring our vehicles open to search as well as throwing out our rights against self incrimination with out legal representation. Where things are about to get real interesting was Obama's use of monies from the general fund for his stimulus plan which was utilized upon the roadway's. Much of these funds were also used to construct ADA compliant ramps at many intersections. Imagine the resulting uproar if blind or crippled individuals were required to surrender their Constitutional protections to utilize those ramps.
If not us than who?