Up to $4,250 cash back, or $1,000 cash and 0.0% financing for 72 months. The subcompact Buick Encore is the brand’s most popular model, but that’s not stopping the GM division from slapping a large wad of cash on the hood to keep inventories manageable. Depending on the region, you may find the Encore subject to another $3,000 cash back for current GM owners or lessees.