In this epoisode, we see how high power and high end luxury meet in the BMW M6 Gran Coupe. And we'll whistle a new tune with the all-new Kia Cadenza. Yolanda Vasquez explains, there's only one place to find out how aerodynamics boost fuel economy. Pat Goss knows a thing or two about history. And if you’re looking to buy a used car you should too.
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