Unfortunately, no. Not at this time. Your node calibrates itself and interprets what it sees in each 2D video frame into the real 3D world by 'knowing' where its 'virtual self' is placed in the 3D map of the real world that you'll find in the GUI. When you set up your node, you have to do set this calibration once, manually using the GUI and its accuracy in space is down to half a centimetre on the earth's surface and its accuracy in time is down to a millisecond.

If it was on the top of the car, the node would have to be constantly updated automatically. But GPS is no where near that accurate. I guess you could use a combination involving LIDAR to constantly tell the node where it is so the car's position is updated in Grassland.

But it would make more computational/economic sense for the government and economically self-interested citizens (interested in mining Grassland's coin) to line the streets with ip cameras which grassland nodes can read from to analyze and broadcast car and pedestrian locations/speed etc. etc. millisecond by millisecond. Which self driving cars could pick up and 'know' everything going on around them even things they can't 'see' themselves.