Idea: take one part American iron from the 50s, one part European capitals as they existed in the era, and mix thoroughly with long stretches of asphalt. Starting in Lisbon, passing through Madrid, on to Paris, Brussels (revisiting the โ€˜58 Brussels Expo), then on to Bonn, Berlin, Warsaw, Minsk, and finally Moscow... 4600km or so of open roads.

How Hard Could It Be?