Ok I would normally say that you have gone too far with this.... except that I upgraded my foam/carpet floor mats to the all season black rubber floor mats. When I went to pick up the new mats at the parts counter they told me not to be silly and just back up to the curb and open my trunk so they could use a forklift to put them into my trunk for me. No joke the new set of 4 floor mats weighs about 40 pounds. I like the durability and ease of cleaning but my fuel mileage has dropped down since the upgrade. I guess I might at least change the rear mats back to the lightweight stock ones.