End of the Road? (Bad HEAD GASKET?)

My 2012 Prius II was just in to the dealer for an engine light. The car had been bought new and dealer maintained (every 5k miles). The diagnosis: blown head gasket, with coolant leaking into 2 cylinders. The dealership wanted me to replace the engine ($6500). A trip to a second shop indicated that one cylinder was misfiring, very limited. Conclusion, perhaps a small leak in the head gasket, but car could still be driven, perhaps for a while. I contacted Toyota customer service and they denied all blame for faulty head gaskets. I also filed a complaint with the NHTSA. My advice, if you have a 2012 Prius, trade it in now. If you're looking for a used Prius, avoid the 2012 models.

 

How many miles on it, and which cylinder has the leak?

Tediously regular lament.