It looks like they are offering the sunroof and ugraded wheels as a package. You should still be able to get just the wheels without the sunroof as a standard option item.
The following is from General Motors Online Order / Reference Guide:
Distribution Updates
Updates for Enclave
Week of 4/16/2007
Effective 4/16/2007, the following changes will be made to the Vehicle Order Guide:
Interior section-Added (PCX) FTC Chrome Package, includes (C3U) power, tilt-sliding sunroof with additional skylight and (P65) 4 - 19" x 7.5" (48.3 cm x 19.1 cm) seven-spoke chromed aluminum wheels, it will be "A1" on FWD CXL 1XL and AWD CXL 1XL with footnote 1 to read "Available for residents of Florida, Texas, California and select adjacent areas. Must specify (R6Q) (PCX) FTC Chrome Package Discount not desired when content within option package is ordered and entire package is not desired or (R7C) Residency restriction override when the package is ordered outside of the approved areas."
Interior section-Added (R6Q) (PCX) FTC Chrome Package Discount not desired, it will be "A1" on FWD CXL 1XL and AWD CXL 1XL with footnote 1 to read "Required when content within option package is ordered and entire package is not desired."
Interior section-Added (R7C) Residency based restriction override it will be "A1" on FWD CXL 1XL and AWD CXL 1XL with footnote 1 to read "Required when ordering (PCX) FTC Chrome Package outside of Florida, Texas, California and select adjacent areas."
Week of 4/2/2007
The following is from General Motors Online Order / Reference Guide:
Distribution Updates
Updates for Enclave
Week of 4/16/2007
Effective 4/16/2007, the following changes will be made to the Vehicle Order Guide:
Interior section-Added (PCX) FTC Chrome Package, includes (C3U) power, tilt-sliding sunroof with additional skylight and (P65) 4 - 19" x 7.5" (48.3 cm x 19.1 cm) seven-spoke chromed aluminum wheels, it will be "A1" on FWD CXL 1XL and AWD CXL 1XL with footnote 1 to read "Available for residents of Florida, Texas, California and select adjacent areas. Must specify (R6Q) (PCX) FTC Chrome Package Discount not desired when content within option package is ordered and entire package is not desired or (R7C) Residency restriction override when the package is ordered outside of the approved areas."
Interior section-Added (R6Q) (PCX) FTC Chrome Package Discount not desired, it will be "A1" on FWD CXL 1XL and AWD CXL 1XL with footnote 1 to read "Required when content within option package is ordered and entire package is not desired."
Interior section-Added (R7C) Residency based restriction override it will be "A1" on FWD CXL 1XL and AWD CXL 1XL with footnote 1 to read "Required when ordering (PCX) FTC Chrome Package outside of Florida, Texas, California and select adjacent areas."
Week of 4/2/2007