Another one here with OCD on the increase (I'm sure it has something to do with this being the newest car I've ever bought), along with the dust and algae problems highlighted, the lack of soundproofing drives me a little nuts at times, along with the well reported "normal noises", had a creak/knock coming from the back seats/boot, tracked it after many days to the catch on the rear passenger seat being a little sticky and not fully engaging, but boy did it take a while and removal of various things to figure it out!

I had the interior light tonight coming on constantly, that drove me a bit mad after a while but presumed it was just "another characteristic" I soon realised the boot was open