The Mitsubishi Endeavor is a mid-size crossover SUV built by Mitsubishi Motors at their manufacturing facility in Normal, Illinois. Based on the PS platform, it was the first vehicle built under Mitsubishi's "Project America", a program aimed at introducing vehicles for North America without having to compromise to accommodate other export markets.

Its design origins can be traced back to the Mitsubishi SSU which debuted at the 1999 North American International Auto Show, although the Endeavor does not share the concept's mechanical underpinnings. The prototype was powered by a 305 hp (227 kW) 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.When the Endeavor debuted, it used the 6G75 3.8 L V6 offering 215 hp (160 kW) (improved to 225 hp (168 kW) in 2004) and 250 lb·ft (339 N·m), mated to a four-speed semi-automatic transmission with an optional all wheel drive system that splits the torque 50/50 by default.