i dunno. GM as a whole needs to sort out that mess. i think i see saturn developing into premium smaller vehicles, as opposed to chevy (cheap daewoos).
this opens pontiac up to unique models small or large but with defined performance characteristics. Buick can focus on extreme comfort that is value based. I think eventually Pontiac/Buick/GMC will be folded into Chevy. Pontiac and Buick will exist with fewer models and will serve the need for buyers who don't want asian type appliances (which is where Chevy seems to be going).
In my opinion it makes more sense to pair Caddy when needed with Saturn and Saab. Its tough for me to see how Caddy complements Chevy, going off into the future.
In reality I like all GM brands in one house, but I think it will be tough for BPG to survive on its lonesome. Saturn has few dealers so I think they can tread water...except it was disappointing to see the Insignia not coming here.
I think Buick and Pontiac can survive and thrive more if folded into Chevy stores as premium product. They can be more tightly focused and they won't need as many models. It's conceivable for example that we could have an Alpha G6 line (wagon, sedan, coupe), Zeta G8 line (wagon, sedan, coupe), the Solstices (moved to Alpha), maybe a clone delta compact with exclusive 2.0 turbo. If they really needed to keep the Vibe I suppose they could but to be honest its a very confused offering that sells well now because of expensive gas. I'm not sure how you do Buick but a park avenue, a Lucerne, a LaCrosse/Invicta.........I would add a 4 place hardtop convertible ala Riviera. Enclave of course. I would add a 2 row crossover and I think that's all Buick needs. Some may argue Buick needs a compact. Who knows on that one.
As usual, its the idea of buying off dealers and consolidation. Saturn is a different cat. Seldom do you have other brands, plus owners of the franchises own multiple dealers.
I think Saturn has more rope than BPG right now......but that's why the Insignia delay is so confusing. To assault the Saturn showroom in 2010 with a new Insignia and Astra and tall MPV like vehicle would have boosted them dramatically.