Buick Century or Ford 500?

Last two options for cars & can't decide which one would be better.

I'd pick the century. They are generally good cars. I'm not a Ford fan though.

I got a Buick and I like it. It's a LeSabre though. "05. Which one gets the best mileage? Which on would cost less to replace the tires? Which one has the fewest miles? Those are the kind of things I would think about.