I remember the ones in the footwells that opened a path from the fenders behind the front tires. And the side tilt windows.
Yes, both of those were also handy. Now the only thing we can do is turn on the AC...
I'm not sure whether the aerodynamic design of today's cars make them noisier, or if I've just gotten accustomed to not having all of that road noise.
It's also possible that back then my stereo was so loud that I just didn't notice it...