Have I been one of the lucky '13 owners or is the engine issue inevitable and hasn't happened yet. I have 5,000 miles on the car and it has run flawless since I drove it home. Every so often in 2ng gear at low rpm's and mph's I will floor it and there is a slight backfire/hesitation like a misfire, otherwise the car has been great. Does anybody have the build dates or VIN range that these engine replacements cover??