My friends that follow me say the exhaust on the car seems to wobble up and down a lot, as though it's about to come off. I haven't noticed this in other cars. Had the dealer look at it when they fixed my "humming" noise. They said that they refitted everything and it looked normal.

Anyone else noticed this?

Nope. But I have noticed the trim around the exhaust is a little flimsy - could that be flapping. Either that, or your dear friends are taking the piss..... :D