Curiously titanium is cheaper than aluminum or stainless steel for the purpose - print time dominates cost. Lugs are printed and then welded to titanium tubes. The design hasn't been ridden, but is interesting. Carbon fiber dominates high end cycling, but many the "feel" of the frame is lacking compared to the best steel and titanium frame bikes.
six degree of freedom IMU sensor package, five DC motors with encoder feedback for flapping and wing articulation (asymmetric wing folding and leg/tail control), power/comm electronics, carbon-fiber frame, and silicone based membrane wings.
This seems like a leap - VW promising EV and autonomous leadership when they haven't shown much and have been late to the game relative to a few other manufacturers. Given the looming financial impact of settlements from the diesel emissions scandal the enormous investments required may be too difficult. There are credibility issues until they show a practical path.
A few years ago Apple Maps were slammed for some rather improbable image renderings - bridges that appeared to melt into channels, melted highways and so on. The same happens with Google Earth. Nice examples of edge conditions for the software..