The architecture of the LF3 is based on the naturally aspirated 3.6L V6 LFX, but with almost entirely all-new components. The LF3 is the most powerful V6 ever from General Motors, it is also the most power-dense six-cylinder engine in the midsize luxury segment. In the CTS Vsport, the LF3 makes
420 horsepower (313 kW) and 430 lb.-ft. (583 Nm). In the XTS Vsport, the engine makes
410 horsepower (306 kW) and 369 lb.-ft. of torque (500 Nm). All figures are SAE-certified.
Read more:
http://gmauthority.com/blog/gm/gm-en...#ixzz5m1xonMD6
The above is what came to mind....the LF3....V-6 twin turbo 410-420 hp....The v6 in this new Caddy must be a different animal, and less powerful...