Ignition problems of the 2005 Dodge Magnum

The 2005 Dodge Magnum r/t that I purchased Sunday January 30th 2011 has an issue. The very next day at 5:00am I became stranded on the side of the road. The esp bas and the check engine light illuminated and the brakes began grinding. I had an employee from chevron help me push it into the service station to be told there was not a drop of oil in it. I purchased oil and had the vehicle towed in. After missing a whole day of work and sitting in the service office I was told the bolt in the brake caliper had become loose. It was fixed and I left satisfied. I did not attempt to drive it again until the next morning and on my way to work (again at 5:00am) the car began jerking and the esp bas and check engine light illuminated. The car starts jerking and will not accelerate at low and high speeds. The car seems to start jerking almost immediately as soon as the seat warmers or the stereo is turned on, but still jerks when nothing is turned on too. Once the jerking starts the car will stall once it has come to a complete stop I. E. At a light or stop sign. It takes several cranks at the ignition to get it back on. This has happened every day since the car was purchased. My car has sat in my driveway since Tuesday February 1st. Today is Friday February 4th. The car is scheduled to be towed back in to dealership Monday February 7th.