I think I have convinced myself I have a rattle under my left foot while driving. Assuming you are driving with your left leg straight up and down, foot firmly planted, when I hear the rattle, I feel a bit of a shudder under my foot. It won't do it all the time, but mostly between 60 and 90 km/h. Anyone else notice this? I'm too lazy to take it to the dealer just for this, and turning on the tunes makes it all go away.