Hi Bob,
Options are listed in five different groups. Here's what I have so far your GS.
Group 1
E= Tinted glass all windows
Group 2
K= Air conditioning
X= Automatic transmission
G= Console for automatic transmission
P= May be Push button radio or Back up lights or Clock, not sure
Group 3
H= Wide beltline trim at windows
Group 4
F= Remote control driver's mirror
S= Could be Gran Sport trim
Group 5
K= Door edge guards
W= Custom seat belt retractors
How does this compare to the options on your Gran Sport?
John Egel