2009 Carrera 4s Pdk on 2040-cars

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Porsche testing four-cylinder Boxster at the N?rburgring

Porsche recently introduced a four-cylinder version of the new Macan for markets outside of North America, carrying Zuffenhausen's first four-pot since the 968 ended its production run the better part of two decades ago. But you can bet the compact crossover won't be the only Porsche to get the four banger before all's said and done. These spy shots, we're told, are evidence of just that.
Spotted undergoing testing at the Nürburgring (where else), this modified Boxster, our spy photographers tell us, sounds more like a four-cylinder engine than the flat six that's powered (in displacements ranging from 2.5 liters to 3.4) every version of the little roadster since its introduction in 1996, the year after the last four-cylinder Porsche ended production.
The test mule is also wearing modified wheel arches and aerodynamic aids under the bumpers, front and rear. Just what they're doing there we're not sure, but we'll probably find out sooner or later.

Autoblog Unplugged: 2015 Porsche 911 Targa 4S

The day began cold and clear. It felt like a perfect late autumn afternoon to flog the 2015 Porsche 911 Targa 4S on the backroads west of Detroit. So it seemed, anyway. An impromptu snow squall came out of nowhere, dampening the roads and our spirits, though the latter quickly were lifted as we began putting our German sports car through its paces. Quite simply, the 911 Targa 4S is up for almost everything. The all-wheel-drive system kept us poised and secure – it takes a bit to unsettle this 911 when all four wheels are clawing at the pavement. We still had 400 horsepower on tap, which is a riot to channel via the seamless PDK gearbox in any condition. Yes, this is a Targa, so even in the snow we dropped the top, cranked the seat heaters and had a heck of a good time. It's hard not to when you're motoring in something that starts at more than $120,000. Still, weather in Michigan can throw anyone a curve. We dealt with it, and luckily, you don't have to. In this Autoblog Unplugged you get all the good stuff. The purr and whine of the engine. Up-close shots of the Targa as it tackles the road – and best of all – no talking. Unplugs are all about driving. Thus, we'll shut up. Please enjoy.

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: