Oregon-based auto retailer Lithia Motors on Monday said it acquired a Pittsburgh-area auto group in a move that continues the company’s eastward expansion.

Lithia (NYSE: LAD), based in Medford, reached a deal for Cranberry Township, Pa.-based Baierl Auto Group, the third-largest auto dealership in the Pittsburgh region. Terms of the deal were not disclosed.

Baierl, which has been in business in western Pennsylvania since 1954, sells Acura, Cadillac, Chevrolet, Ford, Honda, Kia, Subaru, Toyota and…