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James Bond has used a variety of outlandish gadgets over the years, from jet packs to laser watches to pocket x-ray safe crackers. But sometimes even his most seemingly mundane equipment was well beyond the technology of its day. On this episode of Reel Engineering, we take a look at the 1964 classic 'Goldfinger' and examine why the proto-GPS tracking system in Bond's iconic Aston-Martin DB5 was actually the stuff of science fiction.