This is related to another current thread, but from a different angle.
Suppose I want to drive from New York to London. And suppose I don’t have to worry about “practical” considerations like food, water, lodging, gas, absence of roads, etc. And suppose I’m able to drive on even the thinnest ice, in addition to land, but not water.
In the coldest part of winter, does the polar ice extend far enough south to make this trip possible? If so, what would be the shortest route to get there? If not, what route should I take to minimize the hypothetical ferry crossings?
And, no, I’m not allowed to go the long way, through Alaska.
I doubt very much you could drive over the pack ice. But assuming you could … In an average year Iceland is surrounded by water but very occasionally the Denmark Strait freezes over. That won’t do you much good, though, since the waters between Icland and Scotland never freeze over. Even the northern part of the Norwegian coast is ice-free, as is the Russian port of Murmansk.
It looks to me like your route (which will only work in winter) would be something like this: drive to eastern Canada, then across the frozen Davis Strait to Greenland, then drive across the frozen Greenland Sea to the vicinity of Svalbard then across the frozen Barents Sea toward of Novaya Zemlya, then a right turn to reach the Russian mainland north of Arkhangelsk. Even then you can’t drive all the way to London because the waters between Great Britain and the continent never freeze.