Acurawatch was foiled by this layer of ice over the radar. This is one thing I'm not thrilled about with the radar based driver assist systems.

 

they could easily fix with a heated emblem

 

Heated windshields, heated mirrors, heated rear glass...a heated 'radar' gadget would make all the sense in the world.

 

It really would for the winter conditions. My previous car had a camera based system, and it worked well in inclement weather and winter. Only seriously heavy rain caused any issues, and even then it was temporary.