GNX headrests

[87TIGN]

Why do some of the GNX's have GNX headrests like this?
eBay Motors: Buick (item 330109284421 end time Apr-23-07 19:34:42 PDT)
and some have the turbo six head rests like this?
eBay Motors: Buick : Grand National (item 180111767363 end time May-07-07 13:07:17 PDT)
-Andrew

 

[turbo87regal]

All original GNX's came with the same head rests as the GN (the one with the turbo 6)

Some guys thought the should have said GNX so the aftermarket made some