Director Michael Bay shared a new Transformers 4 picture on his official site:

Trailer of Transformers 4 – The fourth installment of the blockbuster franchise based on the Hasbro toy line.

(Click on a picture to enlarge.)

Transformers 4 – Unveiling yet another surprise… the extraordinary and exhilarating 2013 Lamborghini Aventador LP 700-4

The car has also been spotted on the set:

Unfortunately Bay didn’t reveal if the car is the alt-mode of an Autobot or a Decepticon. Or maybe it’s just car?

Anyway, another new nugget may have leaked online through Paramount Pictures’ official Instagram account. Someone took a screencap of this post which has since been deleted by Paramount:

See the hashtag #MeganFox? Does that mean Megan Fox is reprising her role as Mikaela Banes in Transformers 4? Is the Lamborghini Aventador her car, or an Autobot in charge of protecting her? Or maybe the hashtag was just a mistake?

Well, stay tuned with us for more information about Transformers 4!
:)