2017 Buick Regal. 2016 Buick Regal. 2011 Buick Regal Engine: 2.4L L4 GAS Naturally Aspirated; EngineCode: LAF; EngineVIN: C;. 2012 Buick Regal Submodel: Base; Engine: 2.4L L4 MILD HYBRID EV-GAS (MHEV) Naturally Aspirated; EngineCode: LUK; EngineVIN: R; FuelSystem: DI;.
