The GG tax IS included in the price but it is NOT included in the 54,995 base price the ZL1 costs... when you buy the ZL1 or any car with the GG tax, you pay the base + the tax... so the ZL1 will cost 54,995+1,200 for the manual and 54,995+2,400 for the auto...
Good catch... you are correct. Except base price is 54,095, both destination charge $900 and GG Tax are listed in the options that are added to the base price. It's also 1,300 for manual and 2,600 for auto.
Now I've learned something...:coolman: