2011 Porsche Panamera 4s on 2040-cars

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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:

Watch the incredibly complicated operation of Porsche's new targa roof

Despite Porsche having claimed the name, targa tops are nothing new. In addition to the semi-roofless version of the 911, plenty of cars in the past have used removable roof panels - the new Corvette Stingray has one (as have prior generations), and this type of open-air experience has been available on past vehicles like the Pontiac Solstice Coupe and Honda Civic del Sol.
But when Porsche took the top off its brand new 911 Targa here at the Detroit Auto Show, it was indeed cause for pause. Simply put, this is one of the most complicated and intricate electronic roof panel removal techniques we've ever seen, save perhaps, for the setup found on the Japanese-market Civic del Sol from the 1990s.
We won't spoil the video for you, but basically, rather than just the roof panel coming off, the entire rear glass area lifts away the body in order for the small section over the passenger compartment to slide back. This has to be incredibly expensive to repair once it inevitably breaks. And we highly doubt you'll be able to operate this mechanism at any speed.

2015 Porsche Cayenne S E-Hybrid

Think of the electric motor in the facelifted 2015 Porsche Cayenne S E-Hybrid as the cream filling in an Oreo cookie. Under the hood of this plug-in hybrid crossover is a 333-horsepower, supercharged 3.0-liter V6 with a 95-hp synchronous electric motor sandwiched between it and an eight-speed Tiptronic automatic transmission. The clutched powertrain allows pure combustion, pure electric or a combination of both to drive all four wheels through Porsche's permanent all-wheel-drive system.
Differentiating itself from the Panamera S E-Hybrid sedan, which shares the same basic powertrain and stores energy in a 9.4-kWh battery, the Cayenne crossover is fit with a more robust 10.8-kWh lithium-ion battery that delivers an estimated pure-electric driving range of up to 22 miles at speeds of up to 78 miles per hour.
To be one of the very first US media members to sample Porsche's latest fuel-efficient crossover, the automaker flew us to Frankfurt, Germany, to test the five-passenger Cayenne S E-Hybrid on its home turf.