Six glowing white orbs followed by six glowing red orbs traveling at high rate of speed, south to north along mountain summit.

In the early morning hours, I was driving 1/2 way up the Teton mountain pass road from the Wilson, WY, side on my way to Idaho Falls to catch an early morning flight to the east coast. I observed three bright white glowing orbs about the size of a small compact car, approximately 200 meters off in the distance and no more than 100 feet above the rugged terrain, and traveling approximately 150 knots from a southerly to northerly direction towards Yellowstone.  Then...three more followed at the same high rate of speed in a perfect straight row, spaced at approximately 100 feet apart, and again followed by three more but these were brilliant red glowing orbs, again followed by three more.  I was quite shaken by my observation in the fact that there were no other cars on the road at that time. It all happened with a 15 second period of time.  These objects were not of this earth.