The DC/Freightliner/Sterling is the old Ford Louisville L-series class 8, along with the Ford Cargo COE. The sale to Freightliner was also concurrent with Ford selling their Cummins stock - the Cummins L10 was the "standard" engine on Ford's class 8 rigs, and they owned stock as a good faith measure. With no more class 8 trucks, they didn't need to cement that relationship with Cummins and sold the stock back.