Well... that is interesting but I don't know how true their research on rarity is. According to them there are only 7 2009 Malibus matching my exact list.
Of course if you go through the list you see things like what plant the car was made in and what week it was made. If you unselect things like that the number starts growing and becomes more realistic.
So that means that 7 cars exactly like mine were made during that week at that particular plant... doesn't sound exceptionally rare.
If you go through the list and check the "realistic" options... Engine, transmission, color, interior (cloth/leather/etc), sunroof, wheels, yadda yadda... you can see how many vehicles of that year match yours.
If I go down to just Silver Moss, 3.6, 18" 5-spoke wheels and sunroof I get 577... I think that is still pretty rare considering there were over 100,000 produced.