Michigan's largest privately held automotive dealership group just got bigger, reported MichiganLive.

The Suburban Collection – a Troy-based dealership group – just announced its acquisition of BMW of Ann Arbor and Mercedes-Benz of Ann Arbor from the Charlotte, North Carolina-based Sonic Automotive, Inc. Terms of the transaction were not disclosed.

The company already has an established Ann Arbor presence, as it owns Ann Arbor Suburban Chevrolet Cadillac, Suburban Chrysler Dodge Jeep Ram, and Suburban Alfa Romeo and Fiat.

"These stores presented an ideal opportunity for the Suburban Collection to not only widen our footprint in Ann Arbor, but also to bring additional marquee brands such as BMW and Mercedes-Benz to our portfolio," David Fischer, chairman and CEO of The Suburban Collection, said in a statement.

We look forward to bringing our sixty-five year heritage and dedication to customer service to these outstanding dealerships."

The dealerships will now be called Suburban BMW of Ann Arbor and Suburban Mercedes-Benz of Ann Arbor, and are located at 501 Auto Mall Dr. and 570 Auto Mall Dr., respectively.

The Suburban Collection did not specify whether there would be immediate management changes at its newly acquired Ann Arbor dealerships. With the purchase, the company now employs more than 2,000 people, with operations in Florida, Illinois, Wisconsin and California.

It is the 18th-largest dealer group in the country.