Porsche

Vonnen Shadow Drive Porsche Hybrid Systeme

Tech: Vonnen Shadow Drive—Innovative Hybrid Power for Your Porsche

Realizing the advantages of hybrid powertrains, Vonnen Performance, based in the heart of Silicon Valley, has developed an innovative aftermarket, bolt-on hybrid system that takes a regular Porsche 911 and adds an electric motor between the engine and transmission, along with a battery and control unit.

Top 10 Best MPG AWD SUVs/Crossovers

Sport utility vehicles and crossovers are popular because they are functional. One trip to Costco is enough to convince many families that a Prius won’t cut it. Regular trips up to the mountains in the winter to ski could similarly motivate a car buyer to look for an all-wheel-drive or four-wheel-drive vehicle rather than the front-wheel drive found on most high-mileage hybrids. All of which leaves the environmentally conscious consumer with some tough choices.

Engine Downsizing Gains Ground

The global drive to reduce greenhouse gases and increase vehicle fuel efficiency is pushing automakers to reduce the size of their engines – while trying to keep all of attributes consumers expect from their cars. Engineers from GM, Porsche and VW have pushed the limits of technology to produce engines that are more efficient, meet increasingly stringent pollution standard and yet make better horsepower and torque than previous generations.