Michael Bay's explosiongasmic Transformers 2 trailer has dropped before tonight's Super Bowl. Watch in horror as a giant one-wheeled Devastator destroys Vegas and in amazement as a Decepticon transforms into an Audi R8.

Look out for the Audi R8 amid the explosions, sinking aircraft carriers and Megan Fox's purty face. Check out our Super Bowl Ad Watch tag for all the rest of tonight's big car commercials. UPDATE: Screen shots from the HD version of the trailer below!