Teenage daughter was driving in rush hour traffic and the car seemed at have stalled out. She pulled over on the shoulder and manually turned off the car. When she tried re-starting it, it would not start. Electrical came on, but no power to the engine. Something then seemed to have overheated because when fire department was called, they extinguished something that had melted the plastic covering underneath the car. Fire department called due to smoke. No flames seen. We believe the smoke was from the melted plastic under car from something (a fluid) that was leaking. Insurance was called, car was towed to a Honda repair shop and then towed to a local Honda dealership. They say engine seized and is locked up and will not re-start. Other noted repair needed they say is torque converter. No other problems with this vehicle in the past. One of the best cars we have owned. No warnings prior to this happening on the highway. Disappointed that Honda did not have a cause and origin expert determine what happened to the car.