When I was shooting Fast and Furious: Tokyo Drift in Tokyo, in winter of 2005, I saw a rig a lot like this. I was walking down a street, and saw a van with four cameras, four LIDARs, and two GPS sensors on the top. I asked a man working on it what it was, and he said "Oh! Are you engineer?" and I confessed that I was just a movie-maker. But, nevertheless, they showed me everything in the van, and said that the point was developing 3D models of all the streets in Tokyo. At the time, it wasn't for self-driving cars though -- they wanted to build 3D in-car maps for navigation. The team of engineers was from a university in Tokyo; although I don't recall which one.