The Dodge Charger Hellcat has more horsepower, but it only comes with an automatic transmission. The manual-equipped Challenger Hellcat gives you three pedals, but falls two doors short of a family-ready experience. Plus, neither of those Mopars is considered a luxury car, and both are now out of production. That leaves just one machine as the most powerful American car of its kind: an extreme-performance luxury sedan with three pedals called the Cadillac CT5-V Blackwing.
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