2011 Chevrolet Volt
Hot tech: Electric car with a small gasoline range extender
2011 Nissan Leaf
Hot tech: Pure electric drive train gives the Leaf a range of 100 miles.
2011 Fisker Karma
Hot tech: Q Drive composed of two electric motors driving the rear wheels, and a gas engine range extender
2011 Porsche Cayenne Hybrid
Hot tech: A supercharged 3-liter V-6 assisted by a 38-kilowatt electric motor produces 374 horsepower.
2011 BMW ActiveHybrid 7
Hot tech: A twin turbocharged 4.4-liter V-8 combines with an electric motor, putting fuel economy around 20 mpg.
2011 Lincoln MKX
Hot tech: MyLincoln Touch interface uses three LCDs for driver information, and Sync now interface with smartphone apps.
2011 Infiniti M56
Hot tech: Eco-pedal resists a heavy foot on the accelerator to save gas while lane departure prevention stops lane drift.
2011 Audi A8
Hot tech: Cabin tech interface uses a touchpad with handwriting recognition for entering addresses.
2011 Cadillac CTS-V Coupe
Hot tech: One of the best traffic detouring features in the navigation system we've seen.
2011 Jaguar XJ
Hot tech: LCD instrument cluster and Bowers and Wilkins audio system.
2011 Mercedes-Benz SLS AMG
Hot tech: Exquisitely engineered, the SLS uses a new double-clutch transmission and a carbon fiber driveshaft.
2011 Ferrari 458 Italia
Hot tech: Using its racing experience, Ferrari puts more controls on the steering wheel, and adds a color LCD to the instrument cluster