2016 MITSUBISHI LANCER Unknown Or Other Problems

I've had the vehicle for 7 years and after inspection performed by the dealer, there is so much subframe rot that my car will not pass the next inspection due in April. I've contacted Mitsubishi and they said there is nothing they can do as there isn't any recall. This model of Mitsubishi has had recalls on many different previous years, such as 2005, 2010 and many online reports of 2014 with the same problem.

2016 SE 2.4L AWC. Purchased car in February 2022 at 66k miles. In December of 2022 at 78k miles, car lost majority power while traveling at 40 MPH, threw 'Tranmission Servie Required' warning light. Drove 3 blocks home, parked for 2 hours. Turned car on and drove normally without lights. Previous event happened x3 before changing transmission fluid in February 2023. From February to May, roughly 500 miles, no codes occured. However, occasional hesitation when accelerating from a stop. Then, in May 2023, while traveling 80 MPH, RPMs shot to 6000, car began to lose power. Pulled to shoulder, turned car off and on, and was able to travel home without issue, another 15 miles.

Our 2016 lancer has suddenly started hesitating/ taking seconds to shift from park to reverse/drive. Also while driving vehicle its rpms fluctuate causing a shudder and surge in power or acceleration. This is a very alarming problem as it puts mine and my kids safety as it hesitates to shift and while driving it loses power and then powers up by itself. We have taken to a transmission shop (HIgH TECH Transmission) and now a dealer (Mission Mitsubishi) and both have replicated problem and pulled code but dealer will not honor recall or repair it. There was a safety recall for 2016 lancers with a cvt8 (SR-16-006) that produces a code P084A as well which and that if both were present a replacement transmission should be approved. All information was pulled from Mitsubishi website, and I called them and spoke to Carla did not give a last name and she...