For 2011 the Challenger gets a new base V6 of 3.6 liters and 305 horsepower (55 more than the previous 3.5-liter V6) and 268 pound-feet of torque; it is truly a huge improvement and gives even the base SE model a genuine performance feel. New chassis architecture delivers higher cornering levels and there is additional standard equipment. But the big Challenger news for 2011 is the debut of the SRT8 392, powered by a 6.4-liter version of the Hemi engine and making 470 horsepower and 470 pound-feet of torque. There will be only 1,142 of the Inaugural Edition models (1,100 for the United States and 392 for Canada), and they will be either deep blue with white stripes or white with blue stripes. The "392" moniker refers to 392 cubic inches, in memory of the 392-inch Hemi of 1957 and '58, but the modern version actually measures only 391 cubic inches; somebody needs a new calculator.