Velodyne High-Def LIDAR
Eye-catching techno-bling on the roof of the autonomous VW Junior 2.
$75K, with 64 laser beams, spinning like a whirling dervish, capturing a 3D map of the world and its inhabitants.
This was a lucky catch, as it is spinning around 10 times/second, collecting 1.3 million 3D datapoints/second.
Here is a Radiohead music video made with it.
And technical details.