LEGO Batman v Superman Batmobile
 

Would love to get one. Wished they'd put these up so people not attending could get one.

Looks like a really good set. I still want to see what Mattel might do for it, but this might be worth getting. Price doesn't seem too bad. Especially for a set that has a decently sized vehicle with built-in gimmicks and three minifigures.

Batman himself doesn't look bad. A bit more detail on the chest than I would like, but other than that not bad. Should be interesting to see how the inevitable armored minifigure turns out.
Unless I'm missing something, this isn't an SDCC exclusive. This is just the first of the sets they're revealing at SDCC.