Earlier Brian K. reported that Transformers 4 production was filming at Detroit's Russell Bazaar and across the street. He has now provided more info, pictures of the cast and a video of a big pyrotechnic explosion that was set off in front of a warehouse that looks sweet live so will be amazing once Bay and his editors do their magic. My guess is the scenes being filmed are a continuation of the chase sequence shot in Taylor, Texas.

Update: Thanks to Brian we have more pictures and another video. The pictures are from this afternoon from filming with the Rally Fighter (description below). The video shows Mark Wahlberg, Jack Reynor, Nicola Peltz and TJ Miller running from the smoking Sonic Racer.

Update 2: The warehouse location has been ID'ed as the Fisher Body Plant. To view another video of the explosions set off by "explosives hung on ropes diagonally across the front of the building" then click here.
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