The mechanic is no closer with knowing what is wrong with the car. He drove it this morning but it didn’t act up. He’s going to try to get it out again today before the end of the day. Its going to be there another day at least. He’s pretty certain that its NOT the transmission but an issue with the engine itself. As he put it, it could be a quick $50 fix or a $500-$600 fix.
This really makes planning for a new car hard.