Sandstorm gets bored easily, and has a very hard time concentrating on humdrum tasks. He craves excitement, and since the Transformers apparently don't have the X-Games (though they do have skateboarding apes), he goes in for fighting the Decepticons. The ever-present threat of deactivation or maiming doesn't frighten him, but he does fear that the war might end any chance for him to enjoy life. For Sandstorm, war may not be heaven, but it's a hell of an adventure.
His alt-mode is a Dune Buggy / Sikorsky S-61 Transport Helicopter.