I feel betrayed by the brand I trusted

I bought a car last year July but I have only driven the car for not more than 6 months. I bought the car online because I trusted the brand and did not even test drive the car. After a day the car started showing Engine faulty. They took it back after a month and then they gave me a loan car. They said they gonna fix the car but the car came back with a broken touch screen and the engine light was still on. They keep on telling me they taking it to an expect but every time the expert touches my car it comes back with something else broken. Now it is a broken scree, no speedometer and also the petrol gage is broken. I want another car and I will not do a reapplication for trade in as they sc****d this car, what am I gonna trade it in for?