Is Subaru Considering a Diesel-Powered WRX STI for Europe

Subaru Tecnica Institute has produced high performance vehicles for over 22 years, but for the first time in its history, there may soon be a diesel-powered Subaru Impreza, tuned for performance, in Europe.


Subaru developed a diesel variant of its famous boxer engine for Europe, which made its debut at the Frankfurt Motor Show back in 2007. Fast forward to January 2009, when it launched the diesel-powered Impreza for Europe, whose 2.0-liter flat four turbocharged engine produced 227 horsepower and 236 pound-feet of torque, mated to a six-speed manual transmission. With Europe's strict emission laws, a diesel-powered STI could be just what Subaru needs to remain compliant.

But will a diesel-powered STI be able to compete with its gasoline-powered stable mate? With a little massaging from Subaru's in-house racing division, it should easily be able to compete. With its low center of gravity, superior fuel economy and low-end torque, a diesel boxer would make perfect sense for the STI. A 2.5-liter turbocharged flat-four gasoline powered STI pumps out 305 horsepower and 290 pound-feet of torque, and we're confident Subaru wouldn't release an oil burning Impreza WRX STI unless it was comparable to the gasoline version.

Just this week, we reported that Subaru greatly improved upon the 2011 STI's handling characteristics. New anti-roll bars, stiffer springs, improved bushings and a lowered ride height all combine for the improved handling. With its improved equipment, the Subaru just lapped the Nürburgring Nordschleife in a record-breaking 7:55. If the rumors from Autocar are true, don't expect a diesel STI to be launched until the Impreza enters its next generation for the 2012 model year.

Source: Autocar

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2011 WRX STI sedan runs 'Ring in 7:55, quickest ever for Subaru

Quick: What's the fastest production sedan in the world? Does it wear a Mercedes-Benz, Audi or BMW badge? What about the Porsche Panamera Turbo or the Cadillac CTS-V? There's no doubt that each of these vehicular behemoths is capable of ripping off some fast times on a race track near you, but Subaru is out to prove that its new 2011 WRX STI sedan has the chops to keep pace with the best from the rest of the world.


To prove its point, Subaru recently sent test driver and four-time World Rally Champion Tommi Mäkinen out to the famed Nürburgring Nordschleife course in Germany with a 2011 STI test car. According to reports, the vehicle used in this testing was equipped with a few significant upgrades including a larger turbocharger that normally sees duty in the Japanese R205 model and some lightweight aluminum bits, but one thing is for certain: the 7:55 lap time is a mighty impressive result.

For those keeping track of such things, the previous best lap set by a Subaru WRX STI was in 2004 at 7:59.41 and the new mark set by Subaru – albeit with a
prototype, not a production car – is quicker than any of the aforementioned competition. Best of all, there's a video of one entire lap around the 'Ring and you can find the in-car footage after the break.

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Revealed: Subaru Cosworth Impreza WRX STI CS400 Road-Going Rally Car

Subaru and Cosworth teased us earlier this year with a monster WRX STI, but now the full details on the finished product -- the Cosworth WRX STI CS400 -- have been revealed.

As Cosworth’s forte lies with engines, it’s not too surprising to read that the majority of CS400’s changes rest within the engine compartment. The CS400 retains the STI’s turbocharged 2.5-liter boxer-four-cylinder engine, but it’s received some serious surgery. Cosworth installs new high-performance pistons, high-strength steel connecting rods, and Cosworth-designed engine bearings. A new Cosworth-designed head gasket is also added, along with a high-pressure oil pump, and a revised turbocharger compressor and wastegate.


Cosworth hasn’t disclosed the boost pressures used, but the revisions -- along with a new exhaust system and revised ECU -- are enough to get the turbocharged engine pumping out 395 horsepower and 398 pound-feet of torque. That’s roughly 90 ponies and 103 pound-feet more than a U.S.-spec 2011 WRX STI.

We’d celebrate the car simply for the extra power, but Cosworth didn’t stop there. Engineers at the tuning firm partnered with Bilstein and Eibach to revamp the WRX’s chassis tuning to incorporate new coil springs that drop the ride height by a half-inch. Fourteen-inch AP Racing brake discs were added all around, a significant improvement over the 13- and 12.6-inch front and rear discs used on the 2011 STI.

Cosmetic tweaks are subtle, but they do help differentiate the CS400 from a standard WRX STI. Cossie-tuned Imprezas receive a new front fascia with foglamps, a mesh grille insert, and a unique rear spoiler. Larger 18-inch wheels not only help dress up the car’s appearance, but also increase the STI’s track by a half-inch. Buyers have little say in the exterior décor, but can choose between three paint colors (red, silver, and dark grey). Inside, all cars receive Recaro racing seats in lieu of the stock front buckets.

Only 75 of these incredible machines will be produced, and as we suspected, none will (legally) make their way to North America. The entire production run will consist of right-hand-drive models and will be sold in the United Kingdom. The CS400 will cost a whopping £22,505 more than the base WRX STI, bringing the total to £49,995.

Source: Autocar

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