http://www.automedia.com/2004/Mitsubishi/Endeavor/rts20030701me/1 "2004 Mitsubishi Endeavor"], Chuck Schifsky, autoMedia.com The prototype was powered by a 305 horsepower version of the 6A13TT 2.5 liter twin-turbo V6, which directed the power to a full-time all wheel drive system through its INVECS-II five-speed semi-automatic transmission and AYC. [