I'm trying to think if there are any iconic roads in Britain, the way that Route 66 is in America. Ireland has the N17 (https://www.youtube.com/watch?v=32-WdYOeJLk). The M1 is pretty famous - it runs up and down the country like a spinal column - but I can't think of any songs. The M25, which goes round London, is known for its traffic jams and gave Orbital their name (https://www.youtube.com/watch?v=bV-hSgL1R74).
Britain's longest road, the A1. Very scenic in places, and can be wild in winter. The BBC even made a series about it [0].
Apropos of the Wikipedia article and out of general interest, any HN'ers closer to the zone 2 roadsign shown than me? (just off the A281 at Partridge Green).
I'm not sure they are quite capturing the epic glamour I long for. "Episode 8. Traffic officers track down pedestrians taking a dangerous path alongside the carriageway...."
The A689 is the only coast-to-coast road (more or less) - Hartlepool to Carlisle. It runs through the North Pennines and is very scenic in the middle (albeit a little desolate).