Tank Filler Pipe And Cap problems of the 2006 Hyundai Sonata

Back when I purchased this 2006 Sonata I went back in airbag light was on the car was in less than ten minutes dealer said all set and I went in to a local garage for inspection but the car legally shouldn't pass inspection due to said airbag issue and the gentleman put it through but said airbags will not deploy due to the fuse was pulled put one in been on since and it is all over Hyundai forum same problem/2 my front suspension is rattling bad and come to find out same thing on Hyundai forum they always don't know what this noise is/3 my check engine light on code search says evap leak but need 2 say yes its not fuel cap this is a known Sonata problem fuel tank is plastic and there is a part in top that is metal rust out and causes fuel tank to crack this part alone is 1500 plus labor these cars are lemons will not buy another one this is all in 2 yrs of owning not counting there was a recall I just had done but never got notice on any prior to his I want to see all that were supposedly done thanks very dis satisfied customer.