Based on Snyder's tweet, we may get to see the full car tomorrow. It's hard to tell what it looks like, but I'm seeing a lot of the Tumbler mixed with the low, sleek overall shape like the cars from Batman and Batman Returns.
— ZackSnyder (@ZackSnyder) May 12, 2014
Last year, we heard this car might be built by the General Motors studio who also did some of the cars for Transformers 4.
We don't know yet if that's still the case, but it would be pretty amazing if this Batmobile was designed to fit the parameters of an actual automobile rather than just a work of pure fantasy.