Not Too much always forget it is there. Sometimes if I go to the grocery store I put all my liquid purchases in there such as water and juice etc. I need to have hold a case of beer too although I don't tailgate so that probably never happen. the car handles quite a bit differently when you put 50 60 70 pounds in the front trunk amazing. On a sidenote I like the fact that it holds one of those Costco charmin toilet paper packs.