There's also a version trained on Mapillary Vistas, which has images from all around the world. Results from that are at the bottom of the page and at the end of the video ( https://youtu.be/P1IcaBn3ej0?t=462 )
To me that version is much more reflective of the actual potential of this method than "GTA Düsseldorf dash cam". When watching the images produced with that one I get the sense that the sense of realism is enhanced by the dashcam-style image degradations and could be largely emulated in-engine (green LUT, blur + glow filters to emulate lens issues).