I finally had the time to take my car apart. It takes 6 hours, and costs 70-80£ in materials. And was it worth it?? Njaaa, a sort of nice result, but nothing outstanding. From factory, the Corolla is extremly poorly soundproofed. Boot, wheel arches in the back, rear fenders, allmost nothing has been installed to keep wind- and road noise away. Door panels has a little insulation glued to the door panel, but the door itself, nothing but (thin) steel. A car so expensive and a p