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Watch Ben Affleck leave fans in disbelief with Batmobile surprise: 'Are you real?'

Ben Affleck decided to remind some fans in person why Batman is better than Superman.

He has a much cooler car.

The star of the upcoming "Batman vs. Superman: Dawn of Justice" movie gave fans on the Warner Bros. Studio Tour a thrill recently by surprising them while inside the new Batmobile.

After fans declared that Superman would beat Batman in a fight, they changed their tune quickly when the newest Batman popped up the door of the Batmobile and left them in disbelief.

RELATED: Ben Affleck sneaks Matt Damon on to 'Jimmy Kimmel Live!'

"Are you real?" asked one fan.

Joking that Supreman "drives a Subaru," he let some fans of all ages hop in to check out the new ride.

RELATED: Ben Affleck shows off huge back tattoo

The surprise was also to promote a contest through Omaze, an online marketplace that supports social missions while giving fans a chance to win once-in-a-lifetime experiences. All the proceeds from the $10 entry fee into the contest to win a day hanging out with the cast of "Batman vs. Superman" will go to Eastern Congo Initiative.

Follow TODAY.com writer Scott Stump on Twitter.

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