I'm proposing GM add a specialized division called "Heritage" to its stable of nameplates. With the demise of Pontiac and Oldsmobile, and in decades past, LaSalle for example, there are so many great nameplates in the dust bin. Many were huge sellers for the corporation and many still live in the hearts of potential buyers.
My first rollout for this new division is the Camaro-based Trans Am. Heritage cars would of course be based on regular production models, just as these nameplates were in the past. Start up costs would just be for the restamped sheetmetal and interiors. Each GM dealership would be given the opportunity to pair with Heritage for almost no cost. These cars would almost sell themselves with the free publicity the press would give such a bold move on GM's part.
Other nameplates for the future could include Cutlass, Grand Prix, Bonneville, Catalina, even Firenza, and 88/98.
I chose summertime in Nantucket for the first Heritage roll out for this Trans Am because who wouldn't want to attend, lol? The great reviews would almost write themselves.