I do not know. Back when the volkswagen dieselgate was going on, one of the lead mercedes sales people at the local dealership told me that there was a ship in route traveling from germany to the united states carrying a large number of mercedes diesel automobiles.

He said that when Mercedes Germany heard the EPA was hot on prosecuting Volkswagen over the dieselgate scandal, they immediately turned the ship around and brought ALL of their Mercedes diesel cars back to germany.

Apparently, mercedes has not imported any mercedes diesel cars into the united states since the EPA beat the living H outta volkswagen. so who knows if we will see the S450D here in the states.

One thing I have figured out is this; sometimes the germans keep their very BEST technologies for themselves. They do not share their BEST products with any other country. And really, can you blame them?

Especially with the trump tariffs knocking them down into the dirt.