I was talking about what I WISH it could do, not what the actual 'state 
of the art' can CURRENTLY do.

AZPAUL wrote:
> Besides no GPS is every going to drive one of my vehicles, surely you 
> noticed how they navigate in hilly terrain or on roads that have 
> curves and switchbacks. For instance, the ride through the Salt River 
> Canyon would be a very short lived one with a GPS driving, even in a 
> 4x4, I fear!