The logo will ideally incorporate a graphical component and a textual component. The graphical component must be memorable and recognizable by itself without added letters or words. The textual component could be "Rathmann", "R A W", or "Rathmann Auto Works" as fits with the graphical component. There may be uses where we opt to use only the graphical component by itelf, but general usage would be with the textual component. It's possible that a mostly textual logo (eg the "VW" logo) could work for us, but we haven't seen anything yet that looks right for us.
The graphics and font(s) used should touch upon European styles, perhaps somehow combining Italian and German design influences. Something calling to classic European automobile logo designs but with a definite modern look.
The logo itself should look like something that could be on an automobile or automobile related components.
We want something new, so don't just outright copy existing logos from Ferrari, Porsche, BMW etc. Explore different shapes, different geometries, but keep those Euro car logos in mind.