1996 Subaru Impreza Lx Sedan 4-door 2.2l on 2040-cars

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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.

Subaru takes another look back, this time at the 2004 WRX STI

Here we have the followup to the rally-mimicking Impreza 22B STI that Subaru recently chronicled in its Vintage Garage series: the 2004 Impreza WRX STI. Displacement for the boxer four was upped from 2.2 liters to 2.5, and after noticing how many buyers had installed larger turbochargers on their WRXs, Subaru decided to bolt on one in-house. That gave the final product 300 horsepower and a 0-to-60 mile-per-hour run of just 4.6 seconds.
It was stiffer, it's body from nose to front doors was penned by Peter Stephens, he of the McLaren F1, it came with a driver-controlled center differential, driver-activated cooling spray for the turbos and 300 pound-feet of torque. This is a curio from a time when, after a new WRX STI came out, you started poring through magazines to see how the Mitubishi Evo was going to respond. You can find out more about it in the video below.

Japan is the only country to get this WRX S4 tS

Before the Impreza switches to a new platform, Subaru is wringing more limited editions out of the old one. The most recent, the Subaru WRX S4 tS, is a Japan-only special that is based off of the WRX S4 model released a few years ago. Underneath the hood, the WRX S4 tS gets the same modified 2.0-liter turbocharged flat-four from the WRX S4 that generates 296 horsepower and 295 pound-feet of torque. The modified engine produces 28 horsepower and 37 pound-feet of torque more than the standard WRX, and is only five horsepower off the turbocharged 2.5-liter Boxer engine in the WRX STI, while making more torque. The handling has been improved thanks to a similar setup to the one on the WRX STI S207, another Japan-only model released last year, that features adjustable DampMatic II front suspension from Bilstein, along with other goodies. The exterior gets 19-inch BBS forged aluminum wheels, red pinstripes on the front grille and rear bumper, and a large front spoiler. On the inside, the WRX S4 tS benefits from Recaro bucket seats and a luminescent speedometer. The sedan is also equipped with Subaru's advanced safety features in the form of EyeSight. Japanese enthusiasts can also choose a more hardcore option with the NBR Challenge Package that commemorates the automaker's victories in the SP3T class of the Nurbrugring 24 Hours in 2015 and 2016. The sportier model gets 19-inch wheels from BBS, a carbon-fiber rear wing, special badging, and a suede-lined steering wheel on the inside. We reached out to Subaru to see if the vehicle would be sold in the US, but the spokesperson refused to comment. With the WRX S4 and the S207 being Japan-only models, we doubt the new limited edition WRX S4 tS would be offered outside of Japan. Related Video: