I had a similar thing happen to me 3 weeks after I got my car. Pulled out got the chassis malfunction followed by all electronics going out except the tail lights. My engine shutoff though and the car went into neutral.
Long story short they replaced the FEM (front electronics module) and the battery. The battery was giving incorrect voltages but they couldn't tell if that was what caused the FEM to fail.
Here is the thread I made back when it happened.
http://www.2addicts.com/forums/showthread.php?t=1267426
Hope everything works out well! I know my heart sunk went it happened.