Jeep got the sport utility craze rolling back in the 1980s, and while other big SUVs have faded away, the Jeep Grand Cherokee remains popular. The new SRT model combines Jeep’s tradition of off-road characteristics, with a combination of performance and urban sophistication. It comes with an all-new, fully electronic eight-speed automatic transmission, a new Eco Mode that optimizes the new transmission’s shift schedule and extends the range, and Fuel Saver Technology, which deactivates four cylinders under certain driving conditions. The Grand Cherokee SRT also will come with connected features for navigation, entertainment, and picking up phone and e-mail messages. Estimated price is $50,000.