An intriguing photo has appeared on Twitter showing the next-generation Tesla Roadster and the Tesla Semi sitting inside an unknown facility.

The photo showed up on The Tesla Life’s Twitter account with a caption reading, “Tesla R&D lab?” Neither Tesla or Elon Musk have responded to the photo’s posting, from what we could find.

The camera’s eye captured the 2020 Roadster in a shade of gray parked in front of two Tesla Semi models. It also looks like a Model 3 could be hanging out at the right corner of the frame as well. Is it a Tesla research and development center? Perhaps, but we’ll likely never know.

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The Roadster is arguably the more anticipated vehicle. At the electric sports car’s announcement, Musk dropped impressive performance stats. Expect the Roadster to go from 0-60 mph in 1.9 seconds, scoot down the quarter-mile in 8.8 seconds, and cruise for 620 miles before needing charged. Of course, these stats could very well change.

As for the Semi, it should boast a 500-mile range with power found in four electric motors. Musk also promised the Semi can recharge 400 miles worth of range in just 30 minutes with a “Megacharger.” To be fair, that’s comparable to how long it takes to fill a diesel-powered semi up, which takes roughly 15 minutes.

While the Roadster is slated for a 2020 introduction, the Semi is scheduled to arrive in 2019.