That frosting is fattening, Michael.
These days, wouldn't any sort of navigation system count as a conversation-having car? I mean, it's not much of a discussion, but it could be if you were creative enough. Like if you reprogrammed the GPS to respond to the name "KITT."
"KITT!! WHERE IS THE DONUT STORE?!?!"
"Turn right, one hundred feet."
"KITT, THIS DONUT IS GOING TO EXPLODE!"
"Turn left, five hundred feet."