It seems that until July 9, Jaguar decided to tease the living daylights out of us with details about their next generation XJ. This time it is is all about driving dynamics. The engine lineup for the new car consists of the new 5.0 Liter V8 as the main gasoline burning engine available, with the 503 HP supercharged version toping the lineup with the XJR. There will also be a 3.0 Liter twin-turbo diesel V6 making 237 HP while returning as much as 40 MPG, but that engine has not been confirmed for the North America market just yet. Check out the video to see what we are talking about.