Why would a CEL keep coming on then a couple of days later go out by itself? I had a new V6 engine put in my 04 std 6 when it crapped out all by itslef after just 22000 miles (they never did tell me why) and I've only driven 5000 miles with the new one. You'd think a new engine with a few miles on it would be rock solid.

Followup question....is the 2006/2007 M6 a solid design or at the very least better than the bucket of bolts the 2004 model has turned out to be? I love the look of this car but I'm glad I chose to lease so that I'm not stuck with this unpredictable POS.