general problems of the 2018 Dodge Challenger

I was in the city of old san juan, in motion driving down a two lane street. I was in a straight way I had been pressing the brake down to 55 miles approaching a a slight curve ( not even hard, the curve only deviated few feet to a right and then a couple feet to left, in pr traveling to the in the historical area there is a cement like structure no more than 10 inches serving as a barrier between the two car lanes and the bicycle path). At that moment I lost control of the vehicle, brakes felt weird completely pressing them down, in motion. When I slightly pump the brake again going toward a full press the brake and wheels didn't respond. I tried getting control and as I left the last corner and steer I lost control hitting the barrier. My front tire went off!! rolled down hill. After that my car got scratch at the bottom driving on my brake pad. I bought the car the same day!!!!! I can't stress enough the situation. I used to drive older models and I've never had this encounter. The street that it happen was asphalt. The dealer and bank I got my loan, denied my civil code rights, had to go through the insurance. I didn't sign the document stating I gave the rights to the car. The dealer independent Dodge dealer took back the car and never compensated me nor dealt with me again. They never gave me an alternate vehicle for my trouble while I fixed the problem. They never called back! I tried getting a good lawyer but after they tested what happen in the black box they got to the conclusion I was 40 mph, 5 seconds, prior to the moment the incident took place, so I wasn't going that fast pushing my brakes losing control from the left lane towards the concrete I couldn't get a lawyer in puerto rico. I felt they stole my hard earned money, $5,000 I paid upfront, plus the loan and plus the insurance money and the lawyer I had to pay for the aggravation.