2009 Dodge Avenger Steering problems

Going home from work, approximately 1 hour and 15 minutes from my job, and traveling at approximately 40-42 mph my engine just stopped....No sounds, no warning lights, nothing. Just tried to up my speed to go up a very small incline, and nothing...Headlights still worked, no power steering, no brakes.......Managed to pull over.........Shaking like a leaf on a tree, because I am 65 years old, alone, no family to call, no one.....And this was a little after 9pm at night on nov 2nd. Called my mobile mechanic the next...

I bought the car used at franklin sussex dodge in franklin,nj with 70000 miles and two days after I noticed these problems. I lose control at highway speeds when hitting bumps or on turns.The rear of car sways and feels like a rocking boat and I hold on for dear life.I have had it aligned and it uses up new tires at 20000 miles in rear on inside.There needs to be a recall before someone gets killed to correct rear suspension. *Js