Merchandised package, Gran Touring

Years 1987, 2000–02 Models 3 Factory citations 4

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Also described as Gran Touring packageT package

Documented applications

LeSabre — H-body (2000–2005)

2000–2002 Factory-verified

TriShield agrees on the meaning.

GM factory document — 2000 buick lesabre rpo code list, p.1.
GM factory document — 2002 buick lesabre rpo code list, p.1.

Park Avenue — G-body (1997–2005)

2000–2002 Factory-verified

The 2002 list prints Grand Touring. TriShield agrees on the meaning.

GM factory document — 2000 buick park avenue rpo code list, p.1.
GM factory document — 2002 buick park avenue rpo code list, p.1.

Regal — G-body (1983–1987)

1987 Confirmed

includes FE2, gas shocks, aluminum wheels, QYZ and NP5; gnttype.org's 1987 option sheet

This page aggregates every documented appearance of Y56 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.