2014 Subaru Forester fuel system problems

I was driving my 2014 Subaru Forester (about 148,000 miles) behind a minivan at a safe distance and speed. Without warning, my vehicle accelerated uncontrollably. Despite applying the brakes, shifting into low gear, and using the emergency brake, I was unable to slow it down. After impact, the car then hit a telephone pole, spun me around and rolled the car over. There is major damage to the car and we looked at it at the tow yard but the salvage adjuster is moving it shortly.

At cold starting, approximately one time out of 20, the car is very difficult to start. It cranks for up to 10 seconds before starting. I don't know if it's a fuel delivery or an ignition problem. It has happened at ambient temperatures from 35 to 65 degrees. If I didn't continue cranking the engine to an extent that I think is harmful to it, it wouldn't start. I consider that a safety issue, if I needed to get the car going quickly.