Quadcopters Tour A City, On Their Own, For Lexus Ad (VIDEO)

In the latest in an apparently ending series of tech ads that are also legitimately cool on their own terms, we present this video of a swarm of quadcopters touring a city, on their own, at night.

Yes it's a commercial by Lexus. No, they aren't paying us to post this. And no, we don't really understand the link to their cars either.

But you have to admit that watching a group of robots swarming around a T-Rex is pretty interesting.

Watch the clip, above - and then find out how it was done (and how much was real) in the making-of clip below.