The grid does not exist in Europe...
In case you didn't understand that reference, the roads on the other side of the pond have "corners" in them. I don't mean an intersection, but real, honest-to-God bends in the road.
It's funny, they also have smaller bumpers... I guess they don't fall alseep driving on "the grid" or get confused by the whole various speeds of forward movement thing and just run into ****.
It's the same reason they don't have cruise control. They actually need to shift gears to get in and out of corners without wasting their brakes and to climb hills.
