The great General Motors ride-sharing experiment is over. At least for now. Maven, which hit parking lots in 2016 and eventually expanded into the nation's driveways, was GM's attempt to put its vehicles to work, rather than sell them to retail or fleet customers like some kind of dinosaur.

For a fee, users could access the GM-owned fleet of Maven products to perform random driving tasks. Short trips, mainly, in the absence of an Uber or Lyft ride or participation in a more formal car-sharing agreement. Tap that app, find the car, unlock it, and drive off. Abandon somewhere after you're done.

Well, that's what GM just did with Maven.

As reported by The Verge, the company sent out notices to users on Tuesday notifying them of the "immediate" suspension of the Maven experiment.

"After critically looking at our business, the industry, and what's going on with COVID-19, we have made the tough but necessary decision to wind down our business," the automaker wrote to its customers.

Maven services went offline in March due to the coronavirus pandemic, but today's message confirms a permanent cancellation. GM's efforts to insert Maven services into various American and Canadian cities came as the automaker explored new revenue streams in the dawning (and dazzlingly promising) Age of Mobility. Thing is, the windfalls promised by such business models have, for the most part, failed to materialize. Maven was not a moneymaker.

Despite the service's expansion into other pilot projects, last year brought suggestions of trouble ahead.

In January 2019, Jill Steyn, who oversaw the launch and guided Maven through its first two-plus years, abruptly left the company. Before Steyn's departure, the service had branched out with Maven Gig, a rental service providing vehicles to rideshare and delivery drivers. In 2018 came peer-to-peer carsharing, allowing owners of newer GM vehicles to earn money by renting out their rides to Maven customers. That service ultimately expanded to 10 cities.

Shortly before her departure, Steyn spoke of adding non-GM vehicles to the service.

Taking over from Steyn in February 2019 was Sigal Cordeiro, a 19-year GM veteran who formerly served as executive director of global product marketing for the automaker's overseas GEM vehicle platform. Nothing new emerged from Maven after that point.

Partway through last year, Maven announced it was pulling its services from several large U.S. cities, among them New York City, Chicago, and Boston, signaling that the experiment may have gone as far as it could. The pandemic seems to have been the final straw.

In a statement published by The Verge, Pamela Fletcher, GM's vice president of global innovation, said, "We've gained extremely valuable insights from operating our own car-sharing business."

"Our learnings and developments from Maven will go on to benefit and accelerate the growth of other areas of GM business."

General Motors would now like to have a word with you about the zero-percent/84-month financing available to eligible buyers.

a version of this article first appeared on TTAC