Mercedes does export the M Class, and in very high numbers mind you. They don't export near as many as they used to, however. MB built a plant in Europe? to help meet demand. They are also expanding the plant in Vance, Alabama, nearly doubling it in size and capacity. The M Class is due for a redesign in the near future. (Side note: the plant in Vance also produces M Class models that are not even sold in the US. US models are the ML55, ML320, ML4XX. They also make an ML1XX and an ML2XX that are not sold in the US)
BTW, What is CAFE?