On this episode of Head 2 Head, Motor Trend's Jonny Lieberman stages a rematch between the all-new Cadillac ATS and the BMW 3-Series. But this time, he trades the smaller engines and manual gear boxes for more power and automatic transmissions. And just to throw a wrench in things, he brought along the 2013 Mercedes-Benz C350.

Does the bigger engine and auto gear box of the ATS have what it takes to redeem itself against the titans of the segment?

Head 2 Head appears every other Wednesday on the new Motor Trend channel.
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