Converting an engine to burn ethanol is a relatively simple matter of replacing some hoses and seals at the factory, but the Saab BioPower engine is the first to use the corn-based gas to actually enhance performance. Available in Sweden in the 9-5 sedan and wagon–and possibly later in 9-3 models–it generates 148 horsepower on pure gasoline, but when it sniffs ethanol, it cranks up the turbocharger's boost pressure (ethanol can handle higher pressure better than gas) to lift output to 184 horsepower. How's that for an eco-friendly incentive?
The incredible innovations, like drone swarms and perpetual flight, bringing aviation into the world of tomorrow. Plus: today's greatest sci-fi writers predict the future, the science behind the summer's biggest blockbusters, a Doctor Who-themed DIY 'bot, the organs you can do without, and much more.


Online Content Director: Suzanne LaBarre | Email
Senior Editor: Paul Adams | Email
Associate Editor: Dan Nosowitz | Email
Assistant Editor: Colin Lecher | Email
Assistant Editor: Rose Pastore | Email
Contributing Writers:
Kelsey D. Atherton | Email
Francie Diep | Email
Shaunacy Ferro | Email