Memories! I drove over Wolf Creek Pass twice in one day, back in the winter of 1971
(sigh) I was living in Albuquerque then, and a ski instructor who I had a crush on had gone up there for the weekend. It seemed like a good idea at the time to "surprise" him by driving up myself, so I tossed some gear in my Gold Duster and took off for Colorado. Once I finally got to the pass I discovered that I should have been in a jeep before even thinking about getting over something that extreme. But I was crazy enough in those days to drive it anyway, and somehow I made it over. Thank God the plows had been through recently, because the reason my cute little ski instructor wanted to go up there was the 100-foot plus base on the runs, the deepest snow they had ever measured up to that time. Unfortunately, after getting a ways down the other side of the pass, I realized I had no idea where to go next. There was supposed to be a ski resort but I couldn't find it. No businesses where I could stop and ask, no signs, and it would start getting dark in an hour or two. So I eventually turned around and went back over the pass and home to Albuquerque, terrified of any part of the road which was in shadow because I knew it would freeze the minute there was no sun on it. Geez, what a day!
That was definitely before the "improvements" Marichiko is talking about, although I have not seen the road since. I have one picture which I took from the top, I remember it seemed like the mountain went straight down for 5,000 feet. Never saw anything even close to that frightening until I drove in the Canadian Rockies.