I don't think I'd care for this, either

Will pay-per-mile be a buzzkill for American road trips?

Imagine 254 million vehicles.

That's the number of cars, trucks and motorcycles that a tax per mile system would have to monitor.

Some proposals call for using GPS satellites to gather mileage data on each vehicle.

Whoa. Really?

When it comes to tracking their vehicles, Americans tend to be really touchy about protecting their privacy.

According to a University of Iowa poll, only about 20% of drivers would choose a pay-per-mile tax system if GPS tracking is involved.

The anonymous driver will soon be an extinct species, says Neil.

"You can't drop off the grid. Ten years from now, it will be virtually impossible to drive a car that doesn't have an electronic signature," said Neil.

"It doesn't matter whether you have OnStar or you rent a car -- it's going to have a 'black box.' If you've got any kind of navigation, The Man -- with a capital M -- knows where you are."