Special ground effects limit the SRT8 model to paved roads. Base price on the Grand Cherokee SRT8 is $43,325, not including a $780 destination charge.At the heart of the "Grand Cherokee SRT8" is a 420-horsepower hemi engine. Since the Grand Cherokee is engineered strictly for on-road use, the four-wheel drive system utilizes a single-speed transfer case. Four-wheel drive enhances vehicle