Starter problems of the 2004 Kia Motor Sorento

I was on my way to work on Tuesday, March 3, 2015. It was about 7:30/7:40 a. M. I was driving my 2004 kia Sorento ex. I had just driven through st. Peter, mn on hwy 169 south on my way to mankato and was starting to pick up my speed as the speed limit increases as you leave town. All of a sudden, without warning, my vehicle just shut down. The "dummy lights" all lit up. I had no power steering, no brakes, no accelerator - nothing was working. Thank goodness the vehicle, because there was no power, slowed to a stop within a short period of time. I was able to pull over without a collision and no one was hurt. I put it in park and turned the key to the off position. I tried to see if it would start again and absolutely nothing happened when I turned the key. I called aaa and the Sorento was towed to the nearest mechanic shop. Without investing too much time in it because I didn't want a huge bill, the mechanic told me that it has electrical power - has good power to the starter, but the engine does not rotate. They could not even physically rotate the engine. He told me that regardless of what it was, it would be very expensive to repair it because, at this point, they have no idea what is wrong with it. That's when I got on facebook and started asking if anyone had any ideas of what could be wrong and a friend told me about the kia Sorento engine defect class action lawsuit. I believe my 2004 kia Sorento ex is affected by this engine defect. It was dangerous to be driving and I am thankful I was not on a busy freeway. As this just happened 3 days ago, I do not know what I am going to do with this Sorento. I would like to have it fixed, but cannot afford to do it. It is still sitting in the parking lot at the mechanics in st. Peter where aaa towed it to.