In its next iteration, the Subaru WRX STI—as well as its more civilian WRX brethren—could reportedly abandon its current four-door body style to bring back the coupe format not seen since the rally-inspired car's first generation.
Japan's Best Car claims the new two-door WRX could use an updated version of the current 2.0-liter turbo power plant, the FA20. This echoes a prior story that the FA20 would stick around in the new WRX and would be paired exclusively to a continuously variable transmission (CVT) with sport shifting modes. It will reportedly use an improved version of Subaru's performance all-wheel-drive system, upgraded with the help of Toyota.
More significant but still incremental powertrain updates will reportedly come to the WRX STI, which is apparently set to retain a six-speed manual transmission and upgrade to Subaru's turbocharged, all-aluminum FA24. This engine has also been identified as a possible power unit for the next generation of Subaru BRZ/Toyota 86, known to some as the Toyobaru.
Though Subaru has committed to building all near-future models on the Subaru Global Platform or "SGP," which platform the WRX and STI will use remains uncertain. It could possibly share a platform with the BRZ/86, although the sports car twins may jump ship and be built on Toyota's TNGA platform as opposed to Subaru's SGP.