Is it a bad idea to buy a used 2009 Saturn Astra now that they are discontinued?

My little sister (now 17) is looking for a car now that she’s getting her license in February. She likes hatchbacks and cars with that “cute college-kid” look. She saw a Saturn Astra today and really liked it BUT when we looked it up online, we found out that it has been discontinued and will no longer be made in the US. Apparently Saturn was sold by GM to some other company or some funny business like that. I want to know if it’s a bad investment to buy a used Astra since the company has been sold to some other company and no longer makes that vehicle?