I bought a used Malibu from CarMax a couple of years ago, and almost immediately had several problems with it not starting and needing antifreeze every few weeks. The Theft System was inappropriately making my car not start at random times, leaving me sitting for 10 minutes wherever and whenever, waiting for the system to restart. Also, the intake gasket will need to be replaced because GM used antifreeze that eats away at the gaskets in the engine. Check the Auto Beef website; I'm not the only one unfortunately. But other than these two BIG issues, the car is satisfactory in all other aspects.
Auto on/off headlighst, keyless entry, roomy interior, huge trunk.
Should not use/recommend dexcool as an antifreeze. Should have recalled car to fix the passlock (theft) system.