Self-driving Chevy Bolts are cruising the streets of San Francisco

Blink and you might miss it, San Franciscans. There's an autonomous Chevrolet Bolt EV cruising through your city.

Recent General Motors acquisition Cruise Automation, an autonomous tech startup, revealed Thursday morning that it is already testing a self-driving Bolt in San Francisco.

I say "already" because GM announced it was buying Cruise in March -- just eight short weeks ago.

In that time, Cruise has managed to outfit a Bolt with its unique autonomous driving tech and sent it out onto the streets of San Fran, apparently.

Intriguingly, around the same time this photo was released, Uber showed a teaser of its first self-driving car -- a Ford Fusion Hybrid -- undergoing testing in Pittsburgh. Clearly, the two transportation companies are playing a game of oneupmanship.

Mashable has reached out to GM and Cruise for further information about the testing. A company spokesperson told us to "stay tuned."

Have something to add to this story? Share it in the comments.