In '06 CC started having side wall problems. My best friend and travel buddy bought a new Inspire in '06 and sold it in 18 months due to growing problems with the slide out walls and some of the main coach walls. It seems that some wall construction was subbed out and by the time the problem came to light the sub contractor went out of business & left CC holding the bag.
I suspect that any sidewall problem would be visible by now and if it looks good it probably is.
The only down side I have ever heard about the Cat C9 is that it can't be equipped with a compression brake and the exhaust brake is not as effective. The competing Cummins ISL can be equipped with a true compression brake.
Full time since 2007
2003 Monaco Signature