Body & Soul0 min ago
roads and driving
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Surely you don't mean every motorway, dual carriageway, A road, B road and unspecified road???
It would take weeks even trying to do this in London far less the whole of the country.
On the other hand, if you mean the legal and quickest time to drive from the mainland extremities, North to South. ie John o' Groats to Lands End the distance is 834 miles and it would take 17 hours 5 minutes according to my route finder programme.