Unlike neighbors' Subarus, even much older ones, the underside of our 2016 Crosstrek Hybrid is severely rusted. The dealer said it was no big deal and very common, but checking with multiple friends, it isn't. They also said we would soon need the exhaust system replaced due to its condition Two independent mechanics said it was shockingly bad. One said possibly dangerous. e wrote emails and then sent a registered letter to Subaru headquarters customer service and never got a reply. Our Crosstrek only has about 17,000 miles on it, and the body is otherwise clean and not rusted. Has anyone had a similar problem? Any luck on anything with Subaru? We enjoy the car but are very disappointed.