Park Avenue — C-body (1991–1996)

the naturally aspirated 3800 Series I, 170 hp, the base engine; every year from Wikipedia's Park Avenue infobox and its Buick V6 article, which both give L27 to the Park Avenue for 1991–1994 (the V6 article calls the induction tuned port injection); shared C-body engine: the Oldsmobile 98 article's infobox and the V6 article's 1992–1994 Ninety Eight entry name it for the sibling, but both are Wikipedia, so the row stays single-source; the description follows the merged regal-w-body-1988 doc

Ultra only; the Series I engine for 1992–1995 (205 hp to 1993, 225 hp for 1994–1995) and the Series II for 1996 (240 hp); 1992–1996 from Wikipedia's Park Avenue infobox and its Buick V6 article; 1991 is left out because the Park Avenue article's text gives the Ultra the supercharged engine only from 1992, while its infobox and the V6 article start it in 1991; shared C-body engine: the Oldsmobile 98 article and the V6 article date the sibling Ninety Eight's supercharged engine 1992–1995, which supports no Park Avenue year beyond the row's, and both are Wikipedia, so the row stays single-source

the naturally aspirated Series II, 205 hp, replacing L27 for 1995; both years from Wikipedia's Park Avenue infobox, and its Buick V6 article gives the Park Avenue the L36 from 1995; shared C-body engine: the Oldsmobile 98 article's infobox and the V6 article's 1995–1996 Ninety Eight entry name it for the sibling, but both are Wikipedia, so the row stays single-source; the description follows the merged regal-w-body-1988 doc