When I bought my Csrt4 last year, I made sure that the hood didn't started rusting since I have seen on a previous one I went to see when I was in the market, that had started under where the join is in the front and on the side.
I did an oil treatment and when last spring arrived, I noticed that the front of the hood had started bubbling on the outside. Obviously, the damage had started in the inside portion.
Those hoods, no clue about the non-Srt4 model, but every time it rains, there is water trapped in that hood so when you popped you'll see water coming down on each side where the hinge are. Not good when you lived in a salty environment...
6 years old...wouldn't that be considered premature ?!? this ain't a Mazda 3...
Beside the suspension arms ans subframe, there is no trace of rust anywhere.