Tiny versions of the cars based on Ghostbusters, Back to the Future, The Dukes of Hazzard, and Knight Rider are unlocked by completing various tasks in the new Big Surf Island content. It's all stuff Burnout junkies would be doing anyway. You're going to want to hit all 15 Mega Jumps, 45 Billboards, 75 Smashes, and complete all 24 Road Rules, so you might as well be rewarded, right?
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