RacerX on YouTube just posted a video about this. It's titled something like "do I regret buying the Demon 170?" You should go watch it. About 3/4th of the way through the video he mentioned that a lot of Demon owners have contacted him saying that they also have had failures on their cars. Electrical issues, spark plug issues, engines blowing, rear ends failing, etc. He says that to his knowledge Dodge is doing a good job of covering these things under warranty. He himself is still waiting for a replacement engine for his car. I'm guessing it'll be a LONG time because Dodge wanted the engine shipped to Detroit for study and inspection.