That is what is known as a "grey market" car, and as such, you can't just drive into the local Mercedes dealership, and expect that they can and will work on it. In many ways, it is very different than the US version that Mercedes exported to the US. I would be very surprised to see that the engine would pass a smog test in many states, because that engine isn't a US compliant engine. In all probability, it might not even have a particle trap in the exhaust system as was required on all the imported diesels from Mercedes. The only what that I would consider purchasing that vehicle, was if the seller were to guarantee that the state that I lived in, would accept the New Hampshire registration, and that the vehicle would pass any emission tests that the state would throw at it.