2016 Chrysler Town And Country engine problems

My wife was parked at a gas station 5 miles from our home and all outlets and lights began billowing smoke into the cabin. The fire department was called and they disconnected the battery. It has 30000 miles driven. She had to evacuate the children, and it was towed to a chrysler dealer (miller in lebanon, nh) we are waiting for a diagnosis.

Operating vehicle at 65MPH on I-81 engine suddenly shut off. Vehicle was in auxiliary mode. Digital driver display went blank showed only direction and temperature. Power steering gone. I changed to right lane, pulled onto shoulder and placed car in park. I successfully restarted the engine. Rental vehicle only items on keychain were 2 vehicle fobs. Did not hit key with knee. Tank was 7/8 full of gas. On fairly level stretch of roadway. No engine warning lights displayed. No oil or temperature warnings.