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2015 Subaru WRX STI

In December, I put the 2015 Subaru WRX through its paces along some incredibly challenging roads in northern California, and to say I walked away impressed wouldn't really do my feelings justice. Say what you will about the way it looks, the new 'Rex is an awesome car, full stop. When it comes to all-weather sports sedans that won't break the bank, it's very tough to beat the WRX.
But then there's its big brother - the STI. The winged wonder. The rally superstar. The car that, to many - and to me - represents all that is right in the world of dirt-and-gravel thrills. Sharp as the WRX has always been, the hardcore STI model has always been a little bit sharper. But in recent years, that hasn't always been a good thing. What I've liked most about the WRX is the fact that it's not an always-on attack missile - it can be forgiving, easy to drive, and if I'm honest, reasonably comfortable. Because of that, in the WRX/STI debate, I've preferred the former for daily driving activities. I've always had a thing for That Wing, but in the outgoing car, the STI was never really far and away a more rewarding car to drive, and it offered exactly zero upgrades in terms of comfort or refinement.
The 2015 WRX is easily the finest example of Subaru's hot hatch sedan to date. But what happens when you try to turn the dial past 11? I headed back to NorCal, including a stop at the historic Mazda Raceway Laguna Seca, to find out.

Subaru looks back on record-setting WRX STI from 2011 Isle of Man

In what we can only presume/hope is a precursor to the launch of the next-gen WRX STI, Subaru has released three videos now giving us a look back at the history of the STI-badged WRX models. In this third video, Dominick Infante, national manager of product communications at Subaru of America, got ahold of the automaker's 2011 WRX STI that broke records for the Isle of Man TT Challenge a couple of years ago.
In 2011, rally driver Mark Higgins piloted this car to a lap speed record of 115 miles per hour and a lap time record of 19:56.7 around the 37.8-mile course. The race-prepped STI, which Infante refers to as an "STI on steroids," features a beefed-up suspension, a wonderful-sounding open exhaust and the removal of the speed limiter to go with full roll cage and racing seats and harnesses.
Scroll down to see - and hear - new driving footage of this 2011 WRX STI with Infante behind the wheel as well as some race footage from 2011 - including a near-disaster Higgins averted at 150 mph. Also, be sure to check out the previous videos from Subaru for the 1998 Impreza 22B STI and a 2004 WRX STI.

Subaru WRX and STI meet at the dyno with interesting results

Road and Track recently put the 2015 Subaru WRX and the 2015 WRX STI through a battery of dyno tests to find out not only how much difference there is between their two engines, but what kind of differences there are. The WRX gets the company's new FA20 2.0-liter boxer four-cylinder engine with features like a twin-scroll turbocharger, direct injection and variable valve timing on its two cams. The WRX STI stands pat with the older EJ-Series motor, meaning a 2.5-liter boxer four-cylinder with port fuel injection and carryover turbo lag. Subaru pegs the $26,295 WRX at 268 horsepower, 258 pound-feet of torque and an "extremely conservative" 0-60 mile per hour time of 5.4 seconds. The $34,495 STI clocks in at 305 hp and 290 lb-ft with a 0-60 mph time of 5.1 seconds. Ok, fight.
R&T's dyno runs sussed power numbers at the wheel of 223 hp and 245 lb-ft for the WRX, 247 hp and 243 lb-ft for the STI, then went on to demonstrate in numbers what everyone knew: that the WRX consistently puts out more of its torque earlier than the STI and achieves full boost almost three seconds quicker. On the other hand, on the track, the STI was also shown to have a conservative official 0-60 mph time, stopping the timer at 4.8 seconds compared to the WRX's 5.2 seconds.
The mag says it has comprehensive results coming from its "complete battery of tests," but for now, you can scrutinize their dyno charts and let the battle continue about which one you'd rather put your money down for.