2023 MAZDA MAZDA3 Engine Problems

My 2023 Mazda 3 started to have a more terrible and annoying rattle after 3000 miles. The engine will resonate and knock when it reaches a certain speed. The slow speed light throttle acceleration rattles. The most annoying thing is the multiple rattles inside, dash, door panels, and roof. It is like a can in the summer. What’s more terrible is that in the winter, its internal door panels, windows, and dash make a knocking sound like a screw is loose. I went to multiple Mazda dealers and it was obvious that they could not find and fix the issue. They either said they didn’t hear it or said it was a "normal noise". This is disappointing and unacceptable.

I was driving on the highway and decided to switch int the left lane so I sped up and heard a big bang and what sounded like my bumper being dragged against the ground. I see on my dashboard that there’s an electrical and engine malfunction so I pullover and pop the hood. A bunch of smoke comes out and i see a little fire so me and my friends run and call the police. The police and firefighters arrived just as the fire was getting large and it had engulfed the front right side of my car. If the notification that there was a malfunction didn’t come on, I feel as if we could’ve been hurt much worse or even have died. I’m not much of a person that knows about cars and it sounded like my bumper was scraping and by the amount of times i’ve scraped my...