This Back to the Future LEGO concept was created by m.togami and Sakuretsu. The build was submitted to LEGO CUUSOO, an evaluation site for possible new LEGO models. Fans submit their own designs and if they receive 10,000 votes, the project moves forward to the evaluation stage.
The design included all the pieces necessary to make three versions of the DeLorean, one for each movie, along with the required props and minifigs of Doc Brown and Marty McFly.
LEGO just revealed that the next LEGO CUUSOO set going into development will be the Back to the Future Time Machine. The final product is expected to be available in mid-2013 (exact dates and pricing to be determined).