Tesla Battery on 2040-parts.com

Watch Hyundai's concept cars at SEMA

The 2013 SEMA show starts today in Las Vegas, Nev. and Hyundai will introduce several new concept cars, including the Bisimoto Genesis Coupe, the Genesis Legato Coupe and the JPE Genesis Coupe. We've all seen the pictures, but now we give you video of these concepts in motion.

Mercedes-Benz reveals SLS E-Cell performance data

Mercedes-Benz has lifted the veil of secrecy on the plug-in-electric propulsion system of its upcoming SLS E-Cell, first revealed in concept form at the 2009 Frankfurt auto show. Set to go into limited production in early 2013, the zero-emission version of the German carmaker's signature gullwing coupe is set to rival a raft of new high-priced electric or hybrid supercars due out in the not-too-distant future, including the Audi E-tron, the BMW i8, the Jaguar C-X75 and the Porsche 918. The car is undergoing development at Mercedes-Benz's performance-car AMG unit and its British-based sister company, AMG High Performance Powertrains--the company behind Mercedes' latest 2.4-liter V6 Formula One race engine.

Revealed: the longest and shortest new car waiting lists

Is there anything more infuriating than a long wait for something you really, really want? Like a car, for example. You walk into a dealership, hand over a large amount of money and want to drive away as soon as possible.