My 2010 ZR-1 (8000 miles) would not start yesterrday-thought I had left something on but no, it was the positive side of the battery connection, which was HIGHLY corroded-the AAA guy said it was as bad as he had ever seen-I mean a big pile of "stuff" under the red plastic shield. We cleaned it up and it started up fine. I never thought to even look back there to see how the battery was. I only drive the car 300 miles per month. Also, the battery is rather difficuld to remove and a battery carrier is needed to get it out to clean up the mess left for this episode. Check this out from time to time. Probably not specific to the ZR-1.