Features for your Buick Regal Hypertech GM Max Energy Economizer The Buick Regal is a mid-size luxury car introduced by General Motors in 1973. North American production ended in 2004,[1] but the model continued in China. For many model years, the Regal shared bodies and powertrains with the similar, Cutlass Supreme. In 2011, Buick introduced an all new Regal for the North American market to be produced at the Oshawa Car Assembly plant in Oshawa, Ontario.[2] Hypertech GM Max Energy Economizer Fits the following: |