Based on what you're describing, it's quite possible that you have a damaged ignition switch or faulty ignition relay. (yourmechanic.com)
In May 2014 the NHTSA fined the company $ 35 million for failing to recall cars with faulty ignition switches for a decade, despite knowing there was a problem with the switches. (en.m.wikipedia.org)
It has nearly constantly had a check engine light on, I have replaces the spark plugs more times than I care to count because of faulty ignition coils, and the Evaporative Emissions Sensor has now gone out, which I am fairly sure is not even a thing. (autolist.com)