What is it? Fisker showed a convertible version of the Karma sedan at the Detroit show, with a power retractable hardtop that stows in the trunk. Riding on a modified sedan platform, the Karma S is ten inches shorter in overall length. The Karma S uses the same plug-in hybrid powertrain found in the...More •Jeep Grand Cherokee •Hyundai Equus •Hyundai Sonata •Porsche Panamera •BMW X1