When is 170 horsepower not enough?
Many car enthusiasts would say always, but in the Colorado high country the answer to that question can best be demonstrated at 10,000 feet above sea level.
Because at the elevation people and cars begin to starve for oxygen.
In fact at 10,000 feet above sea level there's about 30 percent less breathable oxygen to be had which for most normally aspirated cars means about 30 percent less power to the wheels.
Check out this iPhone First Look video as we take the 2010 Mazda 6 up Vail Pass in Colorado to see what happens when the cars 170-HP 4-cylinder engine begins to starve for air.
Editor's Note: Often first
impressions are the most honest. This video review was shot on an iPhone
and represents an initial impression. We use it like a reporters note
pad to give you an inside glimpse of what we are doing before we
formally review the car.