So... This is a (massive) thing. This is a Das Rollende mobile hotel. You basically check into this massive German hotel bus and tour an area. The bus contains 26 separate 6x3ft bedrooms and carries about 55 passengers. German plates.
I was eating lunch on a patio when it rolled by. I nearly choked when I saw it lumbering down the street. Fun fact, last week when eating in the same spot I saw David Harewood just chillin as they shot a movie across the street.
As a bonus, here is an RCMP national security Chrysler 300 (???). Its not uncommon to see counter-terrorism/national security vehicles or even heavily armed units in my building due to the US Consulate occupying the top few floors. Not sure if a 300 would be my first choice.