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2015 Subaru WRX STI - Control Freak

May 9, 2014 SHARE

It happens almost every time a redesigned car debuts—the peanut gallery chimes in. "It's ugly. It'll never be the same. It looks like so-and-so. They got it wrong..."

People can make all the judgments they want, and haters will always hate, but eventually many come around once they get a chance to drive the car, or see it modified, or generally wrap their minds around exactly what the engineers were aiming for.

The moment the new 2015 Subaru WRX STI went viral, almost half of the comments about the sedan-only high-performance turbo AWD variant were negative. And we can relate—it looks very little like the concept that swept us off our feet at the 2013 New York International Auto Show. But after giving it a chance and seeing a fully prepped race version in person, we can honestly say the new STI is better than ever!

2015 subaru WRX STI front fascia 02 Photo 2/10   |   2015 Subaru WRX STI - Control Freak

When I first talked to Subaru engineers about what makes this STI different than the previous generation, they told me the older one fell short when it came to driver control. Power-wise, the car was more than enough to handle for the average driving enthusiast. So instead of spending millions to make a few extra ponies, they developed a chassis that would be more balanced, safer and quicker around the track. It's not about numbers with the new STI, but about feeling that emotion and control.

Eager to drive the car for the first time, I took a quick flight out to Monterey, to meet with the bigwigs at Subaru. Before I knew it they had me on a bus to a little track known as Laguna Seca Raceway (ever heard of it?) where I was thrown a helmet and given the keys to a barely-driven STI. My job sucks, right?

Starting the car and taking it out of the pits for my initial warm-up lap, the first thing I noticed about the car was its steering—razor sharp and incredibly responsive. The steering wheel is tad smaller in diameter than the WRX, features a thicker cross section and uses soft materials. The ratio is much tighter than the WRX as well—13:1, as opposed to 15:1.

2015 subaru WRX STI driver side profile 03 Photo 3/10   |   2015 Subaru WRX STI - Control Freak

On my first hot lap, this was incredibly noticeable along with how well the chassis is dialed-in. After each lap I could take each corner faster and faster, yet the STI didn't even break a sweat, as the car remained balanced and gripped like glue. After the first two sessions, I was feelin' good; I'm no professional driver by any means but this car gives you that confidence.

I walked over to talk with a Subaru engineer in the pits about everything that's been changed to make the new STI much more agile. He went on to list more things than I had enough time to jot down on my notepad. Literally every part of the chassis has been touched: stiffer torsion bars, more rigid control arm bushings, higher strength steel, bigger sway bars, etc.

Then came some numbers that blew me away: lateral stiffness up 38%, roll stiffness up 24%, torsional rigidity up 40% (DUDE!). The new STI is just that much more of a handling monster compared to the outgoing model, and it falls just short of Porsche 911 territory—a car that's more than double the price! The engineer told me the new 911 was used as the benchmark throughout the STI's development. We figure with only a handful of power and chassis mods, the new STI could really give the 911 a run for its money!

2015 subaru WRX STI front seats 06 Photo 4/10   |   2015 Subaru WRX STI - Control Freak

After picking the engineer's brain for 15 minutes, it was time for my next session. Knowing how well it handled, it was time to push the car even harder and really test the car's symmetrical all-wheel drive system and power delivery. I was impressed with how crisp each shift was. From the presentation earlier that day, I remembered the tranny mounts are stiffer and the gearbox uses a modified shift mechanism and new rod profiles— all equating to a more solid and smoother shift. Subaru nailed it!

I was also luckily behind the wheel of a Launch Edition STI, which features the short-throw shifter (an option on the standard model). After every 2.238-miles of Laguna Seca, I didn't want to pull into the pits. I just wanted to keep going. The power delivery is strong and peppy as boost kicks in after 3,000rpm. Subaru told me the ECU is retuned to be more responsive, with more accelerator input with less throttle—made for easier heel-toe action and quicker reaction times. And with four differentials working along with a new active torque vectoring system that helps improve "near limit" cornering by distributing torque to the outer wheel, the car would accelerate out of corners with control and gusto!

After more than 10 laps around the world-famous Laguna Seca, I was convinced the new Subie was a track-ready performer. But still hungry for more, the day was only half over and Subaru let me take its Launch Edition STI out in the real world where the pavement wouldn't be so smooth and the turns not as predictable.

2015 subaru WRX STI rear view 05 Photo 5/10   |   2015 Subaru WRX STI - Control Freak

I set out on a journey through Carmel Valley to do some real world shit. I found a 60-mile stretch of road that was desolate with nothing but twisties. I went for it, driving like I was on an actual road rally. With blind corners and sudden sharp turns, I was quickly thankful for the meaty four-piston front, dual-piston rear Brembos—they never overheated and always stopped on a dime. Subaru told me later the brake booster was improved from the previous STI for a solid and more linear feel—I'd have to agree. Continuing my road abuse, another feature that I was thankful for was the increased visibility the new STI has. Subie designers implemented narrower A-pillars, added a partition glass and lowered the instrument panel to allow drivers to see the road better.

The route I was on had some of the bumpiest, pot hole-infested roads I've seen in California. I was surprised how well the suspension, wheels and tires handled everything. I probably wouldn't have gone as hard in a lowered car or with low-profile tires. At times, I pushed the car past my driving limit and was saved by the all-wheel-drive system and active torque vectoring. There were sketchy sections on the road where if I were in a front-wheel-drive car or a vehicle not as balanced, I would have easily eaten some dirt. But the STI drove like a king. I didn't want the road to end, but it did as I finished the afternoon's drive with a high-speed run of 125mph on the open straightaway. It got there with ease, I might add.

2015 subaru WRX STI lightning red 08 Photo 6/10   |   2015 Subaru WRX STI - Control Freak

That New Car Smell
2015 Subaru WRX STI

The Sticker $34,495 (Premium)/$37,395 (Launch Edition)/$38,495 (Limited)

Engine 2.5 liter turbocharged Boxer

The Power 305hp at 6,000rpm; 290 lb-ft at 4,000rpm

2015 subaru WRX STI turbocharged boxer 04 Photo 7/10   |   2015 Subaru WRX STI - Control Freak

Scale Tipping 3,386lbs (Premium and Launch Edition)/3,444lbs (Limited)

Layout Front-engine, all-wheel-drive

Drivetrain standard 6-speed manual; Symmetrical All-Wheel Drive with Driver Control Center Differential (DCCD); mechanical and electronically controlled limited-slip center differential; helical limited-slip front differential and TORSEN limited-slip rear differential; short shifter (Launch Edition only)

Footwork & Chassis inverted struts with forged aluminum-alloy lower A-arms, pillow ball joint mount, coil springs and 24mm stabilizer bar (front); double-wishbone type with coil springs, damper units, stiffener bar and 20mm stabilizer bar (rear)

Brakes 13.0" front ventilated discs with four-piston calipers; 12.4" ventilated discs with dual-piston calipers

Wheels & Tires 18x8.5" cast alloys (BBS forged wheels on Launch Edition and Limited); 245/40R18 tires

2015 subaru WRX STI interior seats 07 Photo 8/10   |   2015 Subaru WRX STI - Control Freak

At the Pump 17/23/19 (city/highway/combined)

The Competition Mitsubishi Lancer Evolution, VW Golf R

Deep Thoughts While half of you are still fighting over its looks, the new STI is a handling monster and has the most power in its class. Get out and drive one!

Random Shiz About the STI

  • Bye-bye hatch. The new STI will only be produced as a sedan.
  • New cast wheel is 2.5lb lighter and 15% more rigid than previous STI wheel.
  • The forged BBS wheels are 2lb lighter than the cast wheels (standard on Launch Edition).
  • First time the STI has a decent sound system. Harmon Kardon is standard. Untz, untz!
  • 1000 units will be Launch Edition models. These come in WR Blue with blue interior accents, gold BBS wheels, short shifter and keyless access and start system.
  • Curb weight is only 2lb more compared to the outgoing model, but handles better and the structure is stronger.
  • According to Subaru, the new STI is three times more agile than the previous model.
  • Borrowed from the BRZ, a sound creator is installed so you can hear the pulsations from the intake system inside the cabin.

24-hour Nürburgring Racer

In between our sessions at Laguna Seca, I had the pleasure of seeing the new STI racecar built for the 24-hour Nürburgring Race in action. This STI will compete in the SP3T class, which is a production-based class. Due to the class restrictions, the 2.5-liter STI motor is too big, so they opted for the 2.0-liter turbo. It's been tuned to 350hp but definitely capable of more. Power is restricted with a 38mm restrictor before the turbo. The 2.0-liter is reinforced with stronger internals and still uses the stock turbo.

2015 subaru WRX STI nurburgring race car 09 Photo 9/10   |   2015 Subaru WRX STI - Control Freak

Our favorite part is the custom one-off carbon-fiber body kit; basically everything is carbon minus the roof! The new fenders are 2" wider than stock, which helps allow the STI to run the 18x10" BBS magnesium wheels and Dunlop slicks. The brakes remain Brembos but the team opted for Endless pads. Subaru tells us the car has been finished since November and they are getting ready for two 4-hour races at the Nürburgring before the main event in June. While the car is no doubt a monster on track, they tell us it's very easy to drive and comfortable—an important factor when it comes to endurance racing. Of course we'll never know since they wouldn't give me the keys, but I'll take their word for it.

2015 subaru WRX STI nurburgring race car 10 Photo 10/10   |   2015 Subaru WRX STI - Control Freak
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