A very impressive demonstration of fully autonomous vehicle technology in Buenos Aires, with two driverless cars undertaking a street race (albeit with one crashing - although that has given valuable data for the developers).  

The cars could actually race, and represented a good demonstration of the technology as the cars could recognise and successfully evade a stray dog that walked on track.

It seems we will see more of this in the future, with the Formula E series looking to race a full grid of fully autonomous race cars in the near future.