died

So last week I was driving my new 04 cobra that I've had for maybe 2 months now and it started lunging forward and overheating while I was driving. I made it home and the car wouldn't turn back on until it cooled down. I replaced the thermostat and everything seemed to be fixed. Now this morning...

Had my car shut off while driving, died as I was just cruising. Showed dashes for the odometer, then went back to normal and started right back up. Did this a couple times, then it died completely and wouldn't start back up. No overheating, all of the gauges were in the normal range. Now...