Ruta 34
If one were to place an unguided missile on the center line of highway 34 outside of Tucuman and light the fuse, it would take out these bulk tankers 1300 km down at the other end of ruta 34 in Rosario on the Rio Paraña, at least that's the way it seemed to me. If there were any curves, I missed them trying to avoid getting run off the road by crazy Argentinian drivers. Ruta 34 may be the straightest road I have ever been on, the only one that comes close is the Trans Canada from Calgary to Winnipeg, and that one falls short by about 400 klicks. Ruta 34 is two lane all the way, what makes it 'interesting' is that it is used by big trucks with a speed limit of 80 kmh ordinary traffic with a speed limit of 120 (!!!) along with motos of the 125 cc variety and everything else in between. It confirms my prejudice that the straighter a road the more dangerous it is. For Edmonton area folks, imagine the stretch of 2A highway between Wetaskiwin and Ponoka being 1300 ...