The Next Subaru WRX STI May be AMG Inspired While Providing 400 Horsepower

While the regular Subaru Impreza and other members of the Subie lineup switched to the new Subaru Global Platform four years ago, the higher-performance WRX and WRX STI versions of the Impreza have yet to follow suit. They're still based on the previous-generation Impreza models. If a new report from Forbes is accurate, however, that might finally be changing, thanks to a new engine being developed for the next STI capable of delivering 400 horsepower and 361 lb-ft of torque. New engine in hand, Subaru can now stuff it into a new WRX…