What is most expensive BMW?

I believe that the most expensive BMW is the z8 which costs $130, 645 and is one of the 10 most expensive cars.

The is accualy a more expensive set of BMWs, A very limited BMW 7-series armored models that you can get in the 745l, 745li, 750li, and the 760li. All of which are upward of 160,000 new.