With gas or diesel engines, the Grand Cherokee aims to please everyone. If you don’t tow heavy loads or hate the smell of diesel, then go for the 290 horsepower V6. If you need to tow heavy loads often, chose the 240-hp diesel with its 420 lbs.-ft. of torque or the thirstier 360-hp V8. And finally, if you want to keep up with the Porsche Cayenne crowd, choose the lightning-quick but gas-guzzling SRT.