Earlier quoted context omitted.
I think we've reached the point where hardware is sufficiently capable for any kind of map, music or video. Case in point: I haven't upgraded my desktop PC in 5 years either.
Unfortunately, mobile processors seem to still be undergoing the same rapid increase in power that desktop systems used to, and the OSes and applications are being built for top-of-the-line phones. Even my iPhone 6 struggles with modern versions of iOS, despite being under 4 years old.
Not so if the same CPU and stuff were jammed into a car (under condition that the heat is taken care of so it doesn't throttle itself).