I have not heard of a pilot.
I can't imagine GM bringing back such a program. After all they can simply adjust the pricing using MPL.
However, that said, all the GM folks that would have remembered such a program are long gone. Some new gal / guy probably brought this up and will get a big promotion / pat on the back ---- AND ---- we get another program to administer.
So ... now it seems likely. Of course it will only apply to those dealers who are currently using EBE, SFE, MOE, NATIONAL PROGRAM, WHOLESALE VOLUME, TRUCKLOAD ENGINE, GM OIL, DIRECT CONTACT DMAs, AND VERY IMPORTANT - only sells tires on the second Tuesday of every week at cost or less.