Of course, now you can drive to the top. The difficulty and terrain ratings are as they are simply because you need to be careful when you do go up the peak, drive carefully, and drink water as you go. It is at an altitude of 14,110 feet so you are at risk of altitude sickness.
At the coordinates you have a fantastic view. If you face in a southerly direction you'll be faced with a huge bronze plaque (bigger than you). To claim the find simply post a photo of yourself and your GPS in front of the plaque. Please don't use an old vacation photo or something, make it a new one in the spirit of Geocaching.
The plaques have now been replaced in their spot and have been completely refurbished. They are even more beautiful than they were before. They even colorized them in spots, and buffed them up very nicely.