Today I was taking me sister to a DR appointment. I believe I turned off the car when I got back in the car was dead. There was no electrical power,not lights horn etc. I took the key out and in multiple time nothing. I got out raise the hood and look about but nothing suspicious stood out. Previously on an intermittent basis sometimes when I got into start the car the clock was off by about 2 hours and all the radio presets were gone. This is a 2013 Coupe with manual transmission. Finally I remembered a similar situation I had with a Saab I had. I got in and rolled the car a bit in neutral and popped the clutch with no key in it. When I tried the key it came started as usual. Anyone had anything similar or ideas ?