The Phillips Berlina used stretched underpinings from a sports car that was produced during what years? 
Phillips Berlina:  It used stretched C3 Chevrolet Corvette underpinnings, coupled to fibreglass bodywork. Chevrolet Corvette (C3): The Chevrolet Corvette (C3) was a sports car that was produced by Chevrolet for the 1968 through 1982 model years. Engines and chassis components were mostly carried over from the previous generation, but the body and interior were new.
1968 through 1982