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Upcoming Subaru WRX STI rumored to get hybrid drivetrain

Subaru might electrify the next-gen WRX STI. According to a rumor from Motoring in Australia citing an unnamed Subie insider, the brand's engineers reportedly have two hybrid systems under development for the future model. The move would allow the STI to boost power output and improve fuel economy and lower emissions to keep up with US regulations. According to Motoring's speculation, the next STI might use an electric motor at the back to power the rear axle and an upgraded version of the FA20 turbocharged 2.0-liter at the front. A new dual-clutch six-speed gearbox would help the power get to the road, and the total system could allegedly offer around 322 horsepower versus 305 hp from the current US model. This rumor also claims the next-gen STI would continue as a sedan when it arrives in 2017. Like previous iterations, the four-door will share underpinnings with the Impreza, which will mean a move to Subaru's new modular platform. The standard hybrid might only be the beginning of electrification for the future STI. Motoring's source also claims the company has a plug-in hybrid variant under development, but it might not debut until the 2018 Tokyo Motor Show. A hybrid STI could be exciting, but until there are solid facts, this rumor joins a long history of powertrain speculation about the high-performance Subaru. In 2008 and 2010, reports emerged about a diesel version, but it never appeared. We once even heard that the current-gen WRX might boast an electric turbo.

Toyota, Honda, Nissan and more collaborating to increase fuel efficiency

Toyota, Honda, Mazda, Nissan, Subaru, Mitsubishi, Suzuki and Daihatsu have announced an alliance that will see a push to improve fuel economy from both gas-powered and diesel-powered engines by as much as 30 percent before the end of the decade.
The newly assembled Research Association of Automotive Internal Combustion Engines put the roughly $20-million project together, with the Japanese government committing to half the cost while the eight manufacturers will chip in the rest.
According to Automotive News, the automakers will team up and share basic research on internal-combustion engines in a bid to cut costs. Eventually, the results of the research will find its way into a production vehicle, although it's unclear just when we'll see the fruits of this partnership on the road.

Don't expect an all-new Subaru WRX until 2020

Despite Subaru completely overhauling the Impreza for 2017, it appears the WRX will stick around on its current platform for another few years. That's the word from Motoring in Australia, who spoke with an senior engineer from Subaru about a WRX replacement. For those that can't wait, the good news is that a WRX refresh is coming for 2018, which should carry the car for another few years. It should be no surprise that a full WRX redesign is a few years off. Although the fourth generation Impreza was released in 2011, the current WRX has only been on sale since the 2015 model year. Given an average five-year cycle, we can most likely expect a redesign for 2020. It's not clear how extensive the refresh will be or if the STI will finally drop the ancient EJ-series 2.5-liter turbocharged flat four engine for the more modern FA-series 2.0-liter turbocharged flat four engine found in the regular WRX. Rumors have been swirling for years of what else a full-redesign may encompass. The current model was rumored to have an electric turbocharger that obviously never appeared. There have been other rumors of a switch to a hybrid powertrain. While that may work when the WRX finally uses the updated Impreza platform, don't expect to see hybrid power in the refreshed model. Subaru says the time it would take to engineer such a system would be too great to have it available for 2018. The new Impreza's platform is designed to fit a hybrid system, so don't rule out the possibility of a WRX hybrid. Related Video: News Source: MotoringImage Credit: AOL Design/Style Subaru Hatchback Performance Sedan subaru sti