So I have a 2014 BRZ with 61K miles on it. I purchased it with 9K miles, certified used. This car been taken care of and not abused, just used for commuting to work. 2 weeks ago my wife borrowed it since her care was getting serviced and I have been working from home since covid started. She was driving home doing about 40pmh when the engine just stops, according to her no sounds and she thought she was out of gas. When I checked the engine with a ratchet on the crankshaft, it would not turn in the normal direction. I was able to counter rotate it about half a turn easily until it stopped. So off to the repair shop, I don't do engines anymore. The first thing they notice is a hole in the valve cover and when they pull one of the plugs it is destroyed. So they go to pull the engine and when the remove the exhaust manifold they find part of a valve spring. When they drop the oil pan, it is full of a lot of broken metal. including many broken pieces of what was once the piston. When they pull the head they see one cylinder with no piston/rod or valves and the head looks beaten up and like it is partially melted. The other cylinder with just a damaged piston has no valves either. Other than a race car engine, I have never seen a piston completely destroyed like this. The largest piece of the piston was a little larger that a quarter. I have read all the problems with the earlier engines after recalls but nothing like this. Does anyone have any ideas? Thanks.