Great video. I always wonder how close the 599GTO is to the 599XX. Hearing both engines at full tilt with awesome redline downshifting is proof positive that my GTO is a direct derivative of the 599XX. I think the 599XX Evo sounds and looks extraordinary. Its a shame that Ferrari never did a "Challenge" type series for the 599XX/599XX Evo. I'd think that the 599XX Evo is faster and sounds better around most tracks than a 458 Challenge (or an FXX/FXX Evo).