I think the reason behind the difference is in the gearing. Even though the auto is heavier, it has taller gearing, and thus fewer revs at speed. This explains why the 5-speeds (like mine, I might add! <img src="/forums/images/graemlins/butwiggle.gif" alt="" />) feel quicker and the autos get a tad bit better mileage.

-S

1997 SR5 5-Spd. TRD Supercharger, URD Supercharger Performance Kit, "Bamachem Designed" 2.5" suspension lift, 265/75R16 Bridgestone Dueller Revos, Airbox Mod, Amsoil: (Air Filter plus engine, diff, x-fer case, + tranny oils)