#2: The plastic doors on the BMW i8 mean that the color of the doors differ from the color of the rest of the car. That, and the cheap-feeling door action, really detract from this model.
#5: This S-2000 is nicer than the Hot Wheels cars. It has made it to being displayed on The Wall Of Worthy.
This is a collection of techical information, much of it learned the hard way. Consider it a lab book or a /info directory. I doubt much of it will be of use to anyone else.