How can I convert .kmz files directly to .dwg format.
Converting Google Earth Placemark Files directly to AutoCAD Drawings (.kmz to .dwg conversion) should be possible using one of many available CAD/3D modeling programs, or online conversion tools.
Try using SketchUp, MyGeodata Cloud or the reaConverter, which should all be capable of assisting you with .kmz to .dwg conversions.
An online GIS converter
A dedicated conversion software
A 3D general-purpose modeling program
3D modeling application for Mac