I should have looked closer. It is a ural. Can't be a Beemer boxer, way out of their price league.
I'm very well versed in sidecars and the Ural inported to the States has Ural's own sidecar attached and it comes in 2 wheel drive but no horsepower. I have a friend that has one and top speed is around 60 with a tailwind.
That is an old Velo and I'm surprised that it's mounted to a Ural. I enclosed a picture of my baby that you can blow up. Let me know what you think. Lots of work went into it. I finally figured out how to post a picture. Hooray for a computer dork.