Displacement isn't the only factor. GM has turned towards supercharging, like Ford. Dodge has not done that yet. The current 6.2L SC engines from GM can trump the GT500 and SRT8 mills for now. If they improve, I'm sure the General will try to trump somehow. Performance wars are great news for us. Given current industry trends and new regulations, the answer may lie not in more horsepower, but less weight, better transmissions, better tires, etc.
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