A Possible Glimpse At A New Grand Cherokee SRT? 2014 Jeep Grand Cherokee SRT Jeep / StellantisIt's been five years since the Grand Cherokee had a high-output V8-powered SRT or Trackhawk variant, with up to 707 supercharged horsepower, and relaxed federal emissions regulations surely open the door to a muscle-car Grand Cherokee today. SRT eboost Air turbo system SRT"I want something quick, fast, ready, now that answers this turbo lag, and this is it. Baker tells CarBuzz that larger turbochargers can be used for higher power levels without all the dreaded turbo lag. But a Stellantis insider confirmedthat if Jeep were to bring back the Grand Cherokee SRT, this would fit the bill.