Excessive hype before a launch, with media silence afterward (see: Acura ZDX last year) is another.

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Key among them is the Acura ZDX midsize crossover SUV.

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The Mercedes-Benz CLS-Class was the first model of this ilk, with more recent additions including the Aston Martin Rapide, Volkswagen CC, Acura ZDX and BMW 5 Series Gran Turismo.

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