Performance value package 1

Years 1985–88 Models 2

Query this via API →

Also described as Option group

Documented applications

Fiero (1984–1988)

1985–1987 Single-source

years from the OSG, which reads it as an option picks group; conceptcarz's 1987 list names it the performance value package

Firebird — Third generation (1982–1992)

1986–1988 Single-source

3rdgenformula lists the hatch roof, power windows and power door locks in the Firebird package; Firebird years: thirdgen.org label decodes 1986; 3rdgenformula option pages 1987–1988

This page aggregates every documented appearance of WS1 in the Pontiac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.