I walked over both of those when I was on a youth hostelling holiday with my mates back in the day. I was 16, young, fit and skinny! Isn't there a Roman Fort at the top of Hardknott Pass?Hardknott pass in the lake district. I drove over it a month or two back. Check out various youtube vids from motorcyclists, cyclists and drivers.
I think it's officially the steepest Road in England and it has some quite tight hairpin bends and switchbacks.
From wikipedia - It has a maximum gradient of 1 in 3 (about 33%). The pass takes its name from Hard Knott which is derived from the Old Norse harthr (hard) and knutr (craggy hill). A road sign warning drivers about the extreme gradient. A single track road runs between Eskdale in the west to the edge of the neighbouring Wrynose Pass in the east.
Well impressed with you driving over it.