John Mrozowski is still a little jet-lagged when we catch up with him to discuss the face-lifted Jeep Grand Cherokee, but his enthusiasm for the vehicle shines through. “Two and a half years ago,” he recalls, “the Senior VP Engineering tapped me on the shoulder and said ‘We’d like you to work on the Grand Cherokee’. Since we had just launched the new model, I was inheriting something that we thought was already great, but we had to take it and make it better.”