This rental car has an interesting feature. If the radio is playing, it gets louder when the car is in motion, and softer when the car is stopped.
While this sounds like an intersting feature, it's a pain in the butt. If you have the volume loud enough to listen to while stopped, it blares WAY too loud when you start moving. If it is loud enough to hear while you are driving, it is WAY too soft to hear when you are stopped.
I need to remember to be sure whatever car I buy in the future does NOT have this feature!