I've been on that Rocky Mountain National Park drive. It's great scenery but I don't know how well the bird would run at 12,000 feet! And better make sure your brakes are up to snuff for the coast down the other side! Lots of traffic on the one road through the park.
Check this out, this was in July!
-=>Lee<=- Due to budget constraints the "light at the end of the tunnel" has been turned off!