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The 2019 Subaru STI S209 has an intercooler sprayer, here's what it looks like when you activate it

The 2019 Subaru STI S209 gets a lot of features that distinguish it from your average WRX STI including wide body work, a giant wing, additional chassis braces and an extra 31 horsepower. It also brings back a performance gizmo that hasn't been featured in a U.S. market Subaru since 2007: the intercooler sprayer. As the name implies, it sprays cool water onto the air-to-air intercooler when pressing a button. In the case of the S209, that button is one of the paddles on the back of the steering wheel. That triggers the water nozzles hidden in the hood scoop to spray water. You can see what happens in the video below. Note that when the car is in motion, air would carry the spray farther back covering more of the intercooler. Now why would you want an intercooler sprayer? Well, the S209, like all WRX and STI models, uses an air-to-air intercooler to cool off hot air coming from the turbocharger on its way to the intake manifold. The cooler your air, the denser it is, meaning more oxygen to combine with fuel to turn into more power. The effectiveness of the intercooler depends partly on the temperature of the outside air flowing over the intercooler. If it's really hot out, it's not as effective. So spraying water onto the intercooler can counter this to ensure that the car is making maximum horsepower even in toasty conditions. This also means that although this may feel like some special secret performance-boosting weapon, it's really only effective in specific circumstances, and will just get you back to normal power, rather than make the car noticeably faster on the street. Long track days in the summer and after waiting in line at the drag strip or autocross are the kinds of situations where you could see power diminish due to hot air and a lack of moving air. Normal driving won't necessitate its use nor will driving in cool temperatures. In fact, the S209's owner's manual specifically says not to use the sprayer in temperatures below 41 degrees Fahrenheit because of the risk of frozen water in the tank. That brings us to another aspect of the intercooler sprayer: maintenance. In fairness, there isn't much to maintain, but if you want to use the system, you do need to keep the tank filled. It's located in the trunk where the spare tire would normally be. Inside of course is a water pump that connects to hoses that run water to the front. There is a warning light that will illuminate on the instrument panel if it runs low.

Just add power | 2017 Subaru Impreza First Drive

The phrase "all new" gets bandied about way more than it should in the automotive world. Depending on how lenient an automaker's marketing department is feeling at the time, refreshed fascias and a reshuffling of trim levels might earn a tired vehicle the all-new appellation. That's not what Subaru has done with its reborn Impreza compact. Everything from its wheels to its windows has been completely redesigned for 2017. With one glaring exception, the 2017 Subaru Impreza has benefited immensely from its rebirth. The chassis is stiffer, the steering is better, and the interior is larger than before. Like on most Subarus, standard all-wheel drive remains a key selling point. The only thing that's missing is more power. Subaru has gotten guff over the years for its exterior design, with vehicles being called everything from ugly (Baja) to odd (B9 Tribeca). The 2017 Impreza doesn't fit those descriptions. There's just enough surfacing pressed into its bodysides to attract the eye, and the burly flared-shoulder fenders add a muscular stance. Dead-on, the Impreza's face is a bit too nondescript – if it didn't wear a Subaru badge, you'd be forgiven for mistaking it for a Honda or Toyota – but it's not unattractive. The bug eyes of Imprezas past are now nothing more than a historical footnote. The Impreza is again available as either a sedan or, for $500 more, a hatchback. The trunk of the sedan measures 12.3 cubic feet. Obviously, the hatch offers more utility than the sedan, with 20.8 cubic feet of space behind the rear seats and a maximum of 55.3 cubes with the seats folded. That's more than the VW Golf's 52.7 and way more than the new Honda Civic hatchback's maximum of 46.2. The first thing we noticed from the driver's seat is how easy it is to see out of the 2017 Impreza. Visibility is excellent in every direction, and all that glass means the cabin feels light and airy. Large, easy-to-read speedometer and tachometer gauges sit front and center, but the rest of the information needed for the task of driving is spread across three different LCD screens. The first sits between the two gauges, and the second is atop the center stack. The third screen is the largest, measuring 6.5 inches on base 2.0i models and 8.0 inches in Sport and Limited trims.

10 of 18 midsize SUVs earn 'good' IIHS side impact safety rating

It's not terribly surprising that midsize SUVs earned better safety ratings than small SUVs in the latest side-impact tests performed by the Insurance Institute for Highway Safety (IIHS). Just how much better they scored, on the other hand, certainly raises an eyebrow. Ten out of 18 midsize SUVs earned the highest rating of 'good' in the stringent new test, altered for vehicles starting with the 2020 model year with a heavier barrier (4,200 pounds) that moves at a higher speed (37 miles per hour) and is fitted with a hard honeycomb frontal structure. By way of contrast, just one out of of 20 small SUVs earned a 'good' score.  SUVs that receiving 'good' scores were the Ford Explorer, Infiniti QX60, Lincoln Aviator, Mazda CX-9, Nissan Pathfinder, Subaru Ascent, Toyota Highlander, Volkswagen Atlas, Volkswagen Atlas Cross Sport and Volkswagen ID.4. For EV fans, it's worth noting the ID.4 was the only electric vehicle included in the test. The Buick Enclave and Chevrolet Traverse scraped away with 'acceptable' ratings while the Honda Passport, Honda Pilot, Hyundai Palisade, Jeep Wrangler 4-door, Kia Telluride and Nissan Murano were deemed merely 'marginal' in the tough new test. Only two models — the Mazda CX-9 and Volkswagen ID.4 — earned a "Good" rating in every test category.  Interestingly, the Jeep Wrangler would have scored a 'good' rating if it were equipped with side airbags for the rear seating positions. It would likely be an engineering challenge to equip its removable top and/or doors with airbags, but the lack of that safety feature allowed the head of the rear passenger dummy to hit the vertical support of the top. Otherwise, the Wrangler scored good ratings across the board. The new Ford Bronco, which makes more allowances for side-impact safety, has not yet been tested.  The popular Hyundai Palisade and Kia Telluride SUVs stand out in the test with 'poor' ratings for driver pelvis injuries. The Nissan Murano, a vehicle last redesigned for the 2015 model year, was the only vehicle tested that received a 'poor' rating for its structure and safety cage. Videos of the tests of 12 of these 18 SUVs can be found on the IIHS' YouTube page. Related video: Green Buick Chevrolet Ford Honda Hyundai Infiniti Jeep Kia Mazda Nissan Subaru Toyota Volkswagen Safety Crossover SUV IIHS Insurance Institute for Highway Safety