The present, fourth-generation Jeep Grand Cherokee arrived as a complete redesign for 2011. Updates include a more powerful base V6 engine, ride and handling dynamics were also improved thanks to a more rigid chassis and a new, fully independent suspension. The “Selec-Terrain” feature for the uplevel four-wheel-drive systems was also introduced. This fourth-generation JGC originally debuted with a five-speed automatic transmission. For that first year, the SRT8 trim was not available. A Trailhawk edition was offered for one year only — 2013 — and had special off-road-ready upgrades including Kevlar-reinforced tires and rock rail body protection. The diesel-powered V6 was unveiled for 2014 along with the eight-speed automatic transmission, the 8.4-inch touchscreen and minor exterior styling updates.
The previous, third-generation Grand Cherokee was produced from 2005-’10. Compared to previous models, its styling was more squared-off and the front suspension utilized an independent design for the first time. It was still a five-passenger midsize SUV offered in two main trim levels: Laredo and Limited. However, there was also the rare Grand Cherokee SRT8. With a 420-hp V8 and a lowered sport suspension, the SRT8 was designed for maximum on-street performance and was the quickest and most powerful Jeep ever produced. Power plants for this version initially included a 3.7-liter, 210-hp V6, a 4.7-liter V8 (235 hp until 2007, when it jumped up to 305) and a 5.7-liter V8 with 330 hp. A turbodiesel model arrived for 2007, boasting a 3.0-liter V6 with 215 hp and 375 pound-feet of torque. Two years later, the 5.7-liter V8 was boosted to 357 hp. All but the SRT8 could be had with either two-wheel drive or four-wheel drive — the SRT8 came with all-wheel drive.