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2015 Porsche Boxster GTS [w/video]

You know the sound: the startling pop-brraaap-pop-pop shotgun fire of unspent flammables coursing through exhaust pipes that usually signals a raw, naughty powerplant beneath the hood.
But when you're nestled in the Porsche Boxster GTS' snug seats, it's not a crackling small block V8 or a high-strung Italian flat crank making the devilish racket, but rather the new king of the Boxster/Cayman lineup, a 3.4-liter flat-six that produces 330 horsepower and 273 pound-feet of torque.
Within the emotional vacuum of a spec sheet, the Boxster GTS' pumped-up grunt seems pretty mild, with a gain of only 15 hp and 7 lb-ft, respectively. But the reworked acoustical experience goes a long way towards suggesting the GTS has a trace of racing blood in its veins, and might even be missing its catalytic converters. In addition to the sonorous, centrally positioned tailpipes, the cabin also fills with lovely mechanical strains thanks to the "Sound Symposer" acoustical amplifier that's trickled down into the Boxster/Cayman lineup from the 911 for the first time. Boxster S, we hardly knew ya.

VW adding particulate filters to gas engines

Volkswagen is working hard to overcome the PR disaster that is its diesel emissions scandal, and part of its efforts is focusing, weirdly, on petrol engines. Starting in June 2017, the embattled German automaker will add particulate filters to the gas-powered Volkswagen Tiguan and Audi A5. The change will eventually impact nearly every direct-injected gas engine the VW Group makes. Audi? Particulate filter. Seat? Particulate filter. Even Bentley is going to get the tech, all in a bid to reduce soot emissions by 90 percent. In fact, by 2022 VAG expects 7 million of its vehicles to boast the emissions-cleaning tech, which has long been a fixture on diesel engines. "Following increases in efficiency and lower CO2 output, we are now bringing about a sustained reduction in the emission levels of our modern petrol engines by fitting particulate filters as standard," Volkswagen Group research and design boss Dr. Ulrich Eichhorn said in a statement. "In the future, all models will be equipped with the latest and most efficient SCR catalytic converter technology." VW's initial rollout focuses on the 1.4-liter, turbocharged Tiguan and the 2.0-liter, turbocharged A5. Considering the popularity of the 2.0-liter across the VW range, we'd expect it's only a matter of time before VW expands its particulate filters tech to additional gas-powered vehicles. Related Video:

Popular Science magazine's Best Of What's New 2012 all ate up with cars

Popular Science has named the winners in its Best of What's New awards, the victors coming in the categories of aerospace, automotive, engineering, entertainment, gadgets, green, hardware, health, home, recreation, security and software. The automotive category did not go wanting for lauded advancements:
Tesla Model S: the Grand Award winner for being "the standard by which all future electric vehicles will be measured."
BMW 328i: it's 2.0-liter turbocharged four-cylinder gets called out for being more powerful and frugal than the six-cylinder it replaces.