On this episode of Ignition presented by Tire Rack (http://www.tirerack.com), 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 Nasty, aka the Corvette Z06. Power is down compared to the Z06, though only fractionally. Instead of 650 horsepower the Caddy makes 640 hp. The CTS-V also shares the big dog Corvette’s tires, shocks, eDiff, and transmission. So how good is this sinister 4-door? How big is Randy’s grin? And why does Jonny Lieberman suddenly show up halfway through the episode? There’s only one way to find out!

Ignition appears every other Monday on the Motor Trend Youtube channel. http://www.youtube.com/motortrend

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