I have a 2006 Chevy Malibu Maxx. I think it depends somewhat on where you live...I rarely see another Chevy Malibu here in Seattle. Maxx's are even rarer. I might see one about twice a month or so. Most people here drive foreign cars, I guess! Same goes for other places I've traveled to recently -- NorCal and Denver, CO.
When I was recently in Michigan, visiting family though, they were everywhere!