I was under the impression that Saturn, Saab, Hummer and Pontiac weren't selling so that was why they got rid of them.... Just like Oldsmobile in 2004.
Can correct me if i am wrong but Saab wasnt even a GM car just like Subaru isn't.....
As far as the Malibu..... I have nothing to say on those. Never owned one the new ones look too much like the camaro from the ass then again so do Corvettes, GM's brilliant Idea to give new corvettes, Malibus and Camaros square taillights surly makes things confusing. They already killed the Corvette when they did away with the flip up headlights. All i know is that i did read that at somepoint during the years you asked the Malibu was based off or built by Daewoo not sure which.
Hummer sold well, but with rising gas prices, becoming the poster child of waste, etc didn't exactly spell a good future for Hummer. GM tried to sell Hummer to a Chinese company, but China didn't want the baggage that came with Hummer and blocked the sale.
Saab was dying no matter what. All GM's purchase did was delay the inevitable. But GM never got Saab and what created their loyal following so they were able to revitalize it. The Saab 9-3 was based on GM's Epsilon platform( Malibu, Pontiac G6, my Saturn Aura, Opel Vectra), the 9-7x was on the GMT-360 platform( Trailblazer, Envoy), the 9-4x was going to be on Theta-Epsilon( current Cadillac SRX), and the new 9-5 was on GM's Epsilon II platform.
You're thinking of the Chevy Aveo which was based off a Daewoo car.
PS: Interesting fact about the Epsilon platform and goes to show how GM was mismanaged and had a ton of waste within its corporate structure at the time. There were three versions of the Epsilon platform. There was the North American version, European version, and Saab version. NA, Europe, and Saab could not work together when developing the platform and they all branched into three versions and they had to be built in their own respective plants. My Aura could only be made in Fairfax, Kansas. It could not have been built in Sweden along side its technical platform mate the 9-3 or in Germany along the Vectra. The 9-3 could not be built in the US or Germany, and the same with the Vectra.
Not going there with the flip up headlights debate. I bet you think the Corvette got double killed when they ditched the round taillights..... And you'll probably think it will get triple killed when/if it goes mid-engine for the C8. The flip up headlights were cool only when they were down, sucked when they were up.