Twix candy bars were originally sold under the brand name "Raider" in many countries (Austria, Belgium, Denmark, Finland, France, Germany, Greece, Italy, the Netherlands, Portugal, Spain, Sweden, Switzerland and Norway). The Raider name was ditched in many countries in 1991, and in 2000 was completely replaced by the Twix brand.
But… "Raider" has to be one of the coolest names you could give a food product. The only way you could really improve on that is to tack "Twix" on to the front of it. The Twix brand has spawned many variants (Peanut Butter Twix, Fudge Twix, Twix Java, etc.) so why not a "Twix Raider"? I'm imagining a hazelnut flavored caramel. Someone from Mars/Twix needs to read this and completely rip off the idea.
"Twix Raider" would also give the guys in the advertising and design departments a lot of room to play. Imagine if someone had thought of this earlier – there could have been a product tie-in with the latest Indiana Jones movie. The logo could have used a really cool "archeological adventure" font (not Helvetica), and maybe even included a fedora or a whip. Theatres could have run ads for Twix candy bars – Twix Raider candy bars – before the previews, instead of those annoying Pepsi Max "advertainment" commercials. George Lucas and Mars, Inc. missed out on this one I guess.