By Runner1928 - Own work, CC BY-SA 3.0

That's the CoBi, or Conference Bicycle, a three-wheeler that can accommodate seven riders. Artist Eric Staller invented it some years ago, and Google has nine of them on their campus, which they use for team-building exercises and group jaunts:

Apparently some 300 of these have been made at a factory in the Netherlands, and sold to buyers in 18 countries. "The CoBi is used in multiple commercial settings," the company writes, "mostly in the context of bike rental businesses and event management companies. There are entrepreneurs who manage a whole fleet of CoBi's. They are also used in therapy, on college campuses and in companies providing ways for employees to get around and build community."

Enter a caption (optional)

Enter a caption (optional)

Enter a caption (optional)

Enter a caption (optional)

Enter a caption (optional)

Each one costs USD $12,750 plus shipping, taxes and duties for American buyers, and €11,000 everywhere else. And if you buy three or more, you get 10% off.

If you'd prefer a boozier version with more rider capacity, check out the City Cycle mobile pub.