My 2014 Fiat has started to turn into a rattle can. It is expected of these cars from what I've read. But considering I get 40+mpg, I'm fine with it rattling do

My 2014 Fiat has started to turn into a rattle can. It is expected of these cars from what I've read. But considering I get 40+mpg, I'm fine with it rattling down the road.