Thank you for the warm welcome!
I am in Frankfurt, which is about two hours from Stuttgart via Autobahn.
What amazes me most, is that Mercedes sends only four diesel models to the USA. Only one is a saloon. Here, half of the cars are diesels. Fuel has always been cheap in the USA, but as conflict in the Middle East grows, prices are going up. Thus the need for more fuel efficient cars arises. I do not understand why Mercedes does not sell the C220 CDI, E220 CDI, etc. across the Atlantik. The E220 CDI accomplishes 42 MPG on your scale and is available with a manual transmission. For those who want power, the V8 CDI models are perfect. Enough power, and and relatively good consumption on the highway.
I guess I shouldn't be boasting of fuel consumption of our CDIs when my daily driver is a 6,2 liter AMG V8