Blurr

Blurr is the fastest Autobot on land. He's a close descendent to a thoroughbred Cybertronic race horse, and a superior messenger. He can quickly whisk information from one place to another. In robot mode, he carries an electro-laser that reverses the polarity of an enemy robot's microcircuts and leaves them motionless. Range: 10 miles. In vehicular mode, he can travel faster than the speed of sound, leaving a blurred image in his trail. As a Targetmaster, he is paired with Haywire, excitable Nebulan teenager whose impulsiveness makes him a chancy electro-laser cannon, at best.

(Source: Wikipedia)