Hi all, Mine has a thud coming from the rear, it happens when the rear tires go over a bump and it doesn’t matter at what speed. If you tap the rear side trim or the boot mat, that hollow reverb sound is what it sounds like. I’ve pulled all of the rear trim out and put a sound insulation on the floor surrounding the battery as well as behind the side trim. I’ve replaced the washers as the dealer used two thin washers, and I have tried just about every mm adjustment on the stoppers. Driving around with no trim and the spare tire removed has made no difference. It’s not a rattle sound or like a can with marbles in it, which everyone is talking about for the stopper adjustment. The dealer says they can’t hear it or replicate it, it’s very frustrating! Is anyone else having the “thud” sound? If I can’t fix it, I’ll have to get rid of it.