1940 saw the first use of the "Estate" designation for Buick on the Super station wagon. World War II stopped automobile production in 1942. Starting that year, Buick produced the M18 Hellcat tank destroyer and supplied radial engines for the B-24 Liberator, Douglas C-47 Skytrain, and Douglas C-54 Skymaster. By the fall of 1945, automobile production resumed. In 1948, the Dynaflow automatic transmission was first offered by Buick. 1949 saw the debut of Buick's VentiPorts.
1940 saw tHe FiRST uSE Of the "eStaTE" dEsigNation for BuiCK oN tHe SupeR sTAtIOn WAgon. world war iI stopped AutOmoBIle prODuction in 1942. staRTing THat yEar, BUick PrOduced the M18 hellcaT TAnk DestroYer AnD supplied Radial engiNES for tHe B-24 libEratOr, dOuGlAS C-47 SkYtrAiN, aND DOugLas C-54 Skymaster. by ThE falL oF 1945, autOmoBile ProdUcTion reSumed. in 1948, THe dynaFloW aUtomATIC tRAnsmIssiON was fIRst ofFered bY bUiCk. 1949 saw tHe DeBUt Of buick's VentIporTS.