Nope, no model kit or dealer promo was ever made for a '64 or '65 Skylark. The only way you can get a '66 now is as a dirt track race car.
Here's a couple small scale 66 on e bay.. http://www.ebay.com/itm/LIMITED-EDI...igures_Diecast_US&hash=item2c6ad8c7f5&vxp=mtr http://www.ebay.com/itm/LIMITED-EDI...igures_Diecast_US&hash=item2ec4bcd856&vxp=mtr This seller has several other Buick models.