The Aussie government recently posted a classification for Bang Bang Racing, a top-down racing game previously released on Android tablets. The listing shows the game merely as multi-platform, however the above footage was leaked from YouTube user Eufo, posting from an Xbox 360 devkit. Take it with a grain of salt, the internet likes to play games and falsify videos, but given the link between it and the classification it seems likely. If you're still needing more evidence, the game's site, registered to the publisher, lists the game for XBLA, though it's probably the ugliest official website known to man.
The astute will also notice Saint's Row Money Shot and Denki's Quarrel in the user's game library. Make of it what you will. We know as much as you do.
*EDIT* The video has been removed by the user.