One of the showrunners ofDC’s Legends of Tomorrowhas shed some light on that surprising quasi-crossover withSupernatural.

But, as the spray-painted demon trap indicates, this isn’t just any Impala.

It’s supposed to be the one Sam and Dean Winchester drive on the CW’sSupernatural, a.k.a.

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Michael Courtney/The CW. Inset: Getty Images

Dean’s beloved Baby.

Not only that, but another image features Sara holding a filming-in-progress sign forSupernatural which raised even more questions.

“You gotta love super-fans.

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Michael Courtney/The CW

Can’t wait until the first builds their own Waverider.”

This was the inspired choice of our producing director Kevin Mock, I believe," Klemmer said.

“In our worldSupernaturalis a TV show, not a real thing.

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Michael Courtney/The CW

Sorry,Supernaturalfans.”

That said, it’s possible for you to expect another Easter egg in the episode.

“The [Supernatural] producers were incredibly gracious and enthusiastic about this tip of the hat, however.

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Michael Courtney/The CW

They even let us borrow some of their musical score listen closely!”

said Klemmer, before adding that “Sam and Dean did not make the final cut, unfortunately.

Or rather they were busy working on their own show.”

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Michael Courtney/The CW

In other words,Legendsrevels in lovingly taking the occasional piss out of its connection siblings.

DC’s Legends of Tomorrowairs Tuesdays at 9 p.m. ET/PT on the CW.