A travel quiz

I attended the excellent key note on Mapping by Scott Davis on Friday.
In his talk, he highlighted how software development and mapping are related right
from the abstraction point of view. He also mentioned how mapquest started this and
showed several innovations including google maps current and future.

So, this morning when I set out to get directions for my trip, I decided to run it by
google maps and mapquest.

Surprise. I gave exactly the same start and end points. Here is what Mapquest says:

Total Est. Time: 2 hours, 29 minutes     Total Est. Distance: 156.57 miles

And google says:

> > Distance: 158 mi (about 3 hours 33 mins)>

The distance is about the same (actually the route they both gave are the same).>

But, they both differ by an hour! Which one of these is right? (Hint: it's a trick question).