On this episode of Ignition presented by Tire Rack, racing pro Randy Pobst gets his mitts on the brand new, third-generation Cadillac CTS-V. When the second-generation CTS-V came out with 556 horsepower, people could hardly believe it. Today, one model newer, and Cadillac has raised the horsepower bar again by grafting in the supercharged, 6.2-liter LT4 V-8 straight outta Big ...

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