2019 LINCOLN MKC Vehicle Speed Control Problems

I purchased this vehicle less than 30 days. It had 29,257 miles. From day one, the vehicle came with no heating. When you push for heat, the cold AC blows. The part is in national back order. Secondly, when driving car at 20- 45 miles there is vibration, like a window is down when on a highway, but I'm driving in my neighborhood with all windows up. The vibration is unbearable. Thirdly and most importantly, when I slow to break, the car revs up, as if it won't stop. This is very unsettling. I'm never at ease because of this. This is a newer vehicle. There's a Toyota Camry 2011 and a Mitsubishi Outlander 2018 outperforming my newer Lincoln MKC 2019. I'm now afraid to drive the MKC because of the safety concerns. I just bought the car in October 5, 2022. I've reported this to corporate Lincoln. I don't...