Did GM spill the beans or just goof up?

[bluecoupe]

http://www.chevymall.com/shopping/product/detailmain.jsp?itemID=2617&itemType=PRODUCT&iMainCat=89&iSubCat=155&iProductID=2617

XX450 HP Z06 Corvette T-Shirt
Black. M - XXL.

 

[Gorgon]

Probably a typo considering it's a C5 and is no longer available.