Concept-car looks help the 2015 BMW i8 stand out in the crowd and a carbon fiber body keeps weight down. The plug-in hybrid drivetrain allows 22 miles of electric range and total output reaches 357 ...

We drive six-figure supercars often enough that we get accustomed to the sounds, the fury and the unholy, carbon-belching standard recipe of raw speed. But what happens when a supercar emerges with a ...