New York ミハApril 12, 2017ハミ ハJeep used a dynamometer toハintroduce the 2018 Jeep Grand Cherokee Trackhawk at the New York International Auto Show.ハ The most powerful and quickest SUV ever,ハthe newハGrand Cherokee Trackhawk is powered by a supercharged 6.2-liter V-8 engine that delivers 707 horsepower, 645 lb.-ft. of torque and powers Trackhawkハfromハ0-60 miles per hour (mph) in 3.5 seconds,ハquarter mile in 11.6 secondsハand top speedハof 180 mph.ハ