the engine is the 575M's V12, tuned to make 540 hp. it's the 5748cc V12, not the Enzo's 6L V12. they rounded the 5.7 to 6 in the name.
persnally I don't like the interior. it's to much like the Enzo- the same air vents and there's a lcd screen.
ps. I'm now officially a light weight