I've got just over 9500 miles on mine and I too in the last two weeks have noticed a funny clunk/loud click, thump sound.
It is coming directly from the driver side rear and is random but seem most prevalent between 1 – 3 gears. I thought it was the loose hatch, the sub woofer, suspension, or even the exhaust but all seem tight and fine. I’m almost due for an oil change and wanted to bring this up to my advisor as well as my sticking hatch issue when I drop her off. Please post any info/updates to the bulletin you have – Thanks!