Arcadia, CA. November 29th, 2017. Rusnak Auto Group celebrated the completion of their brand new, state of the art, Mercedes-Benz dealership in Arcadia, CA. Catering was done by Room Forty, a performance was given by American Idol contestant, Olivia Thai, and Dietmar Exler, President of Mercedes-Benz of USA, called the dealership the most beautiful facility in the whole country.