Henrick, remember our geography is vastly different than yours... we can pile miles on our cars very quickly because we are often able to drive long distances at higher speeds without interruption. I put ~100 miles a day on a car just going to and from my job, much of it at 80+ MPH. The midwest USA is HUGE. The single state I live in, Missouri, is over twice the size of your entire country.... and it's just a middle sized state.
We also have a really, really, (REALLY), pathetic passenger rail system between cities. So that is rarely a choice for folks here. Cars are king.