Ejay, there is more to it than just engines. The A340 has a wing designed in the late 80's/early 90's. The MD11 has a DC10 wing that was designed in the late 60's, with wing tip extentions, and winglets. With both aircraft having very modern and efficeint engines, it comes down to who has the better wing. The A340 (and A330, which uses the same wing) win hands down. Also, from a marketing standpoint, Airbus delievered what they promised with the A340, while Douglas has never got the MD11 to the range they promised.