Talk to Jeff Roselli, the 2012 Jeep Grand Cherokee SRT8's lead development engineer, and it doesn't take long to figure out why the hairs on the back of your neck are standing proud. Among the litany of obscure facts Roselli offers are these: Its from-the-factory alignment includes 1.6 degrees of negative camber up front and 1.3 degrees out back. Its brakes, 15-inch rotors and six-piston Brembo calipers up front are the biggest in the SRT lineup — including those on the out-of-production Viper. Also, its steering ratio, at 17.5:1, is considerably quicker than that of a standard Grand Cherokee (variable, 18.9:1 on center).

It's almost as if the use of Chrysler's new 6.4-liter V8 is anticlimactic. Trust us, it is not. Although this is the same mill you'll find in every current SRT product, the 470 horsepower and 465 pound-feet of torque it porks out is not to be overlooked. Those figures are 50 hp and 45 lb-ft better than the 6.1-liter V8 it replaces. Chrysler's five-speed automatic transmission is still used and is still merely adequate at best....