The eldest of the three Autobot Brothers, X-Brawn is also the toughest and most adventurous. A rugged outdoorsman and cowboy type, he loves driving off-road... and uphill, and underwater, and on staircases. He's not easily impressed by fancy firepower, preferring straightforward guts. He's chivalrous enough to apologize to women drivers. X-Brawn is normally seen as calm figure. A green 13 foot Cybertronian robot male that transforms into a Mercedes-Benz ML320 SUV. He is a friendly robot. 