Yep you can bring in Rhino files into autocad. You can’t directly open them you have to go through the import function. Actually I think you have been able to do it since 2013.
Yeah definitely not fast. I have actually had better luck exporting out dwg files from Rhino, than importing Rhino files into Autocad. As text, dimensions don’t get imported and layers are retained. But if you looking to just get geometry from Rhino in Autocad then it will work. Also I just checked it was also there in version 2012.