The Cadillac ELR, an electric hybrid car, is presented at the Chicago Auto Show in the McCormick Place, Feb. 7, 2013. The auto show kicked off its first of two media preview days on Thursday and will continue with a public show Feb. 8-19. (Xinhua/Stacie Scott)

The Mercedes-Benz Style Coupe Concept, which features sleek headlights and a diamond-patterned grille and lower air dam, is presented at the Chicago Auto Show in the McCormick Place, Feb. 7, 2013. The auto show kicked off its first of two media preview days on Thursday and will continue with a public show Feb. 8-19. (Xinhua/Stacie Scott)

The 2014 GMC Sierra, which comes with three new engine choices: a 4.3L V6 EcoTec3 (LV3), a 5.3L V8 EcoTec3 (L83) and a 6.2.L V8 EcoTec3, is presented at the Chicago Auto Show in the McCormick Place, Feb. 7, 2013. The auto show kicked off its first of two media preview days on Thursday and will continue with a public show Feb. 8-19. (Xinhua/Stacie Scott)

Corporate VP Simon Sproule presents the 2013 Nismo Juke at the Chicago Auto Show in the McCormick Place, Feb. 7, 2013. The auto show kicked off its first of two media preview days on Thursday and will continue with a public show Feb. 8-19. (Xinhua/Stacie Scott)

The 2014 Chevrolet Corvette Stingray, which features an all-new small-block, LT1 6.2-liter V8 engine, is presented at the Chicago Auto Show in the McCormick Place, Feb. 7, 2013. The auto show kicked off its first of two media preview days on Thursday and will continue with a public show Feb. 8-19. (Xinhua/Stacie Scott)

The Toyota Corolla Furia Concept, an example of downsizing, is presented at the Chicago Auto Show in the McCormick Place, Feb. 7, 2013. The auto show kicked off its first of two media preview days on Thursday and will continue with a public show Feb. 8-19. (Xinhua/Stacie Scott)

The 2014 Nissan Nismo 370Z, which features a 350-horsepower, 3.7-liter V-6 paired with a six-speed manual transmission, is presented at the Chicago Auto Show in the McCormick Place, Feb. 7, 2013. The auto show kicked off its first of two media preview days on Thursday and will continue with a public show Feb. 8-19. (Xinhua/Stacie Scott)

Chief engineer Chris Thomason speaks about the interior of the 2014 Cadillac ELR, an electric hybrid car, at the Chicago Auto Show in the McCormick Place, Feb. 7, 2013. The auto show kicked off its first of two media preview days on Thursday and will continue with a public show Feb. 8-19. (Xinhua/Stacie Scott)

Chief engineer Chris Thomason presents the 2014 Cadillac ELR, an electric hybrid car, at the Chicago Auto Show in the McCormick Place, Feb. 7, 2013. The auto show kicked off its first of two media preview days on Thursday and will continue with a public show Feb. 8-19. (Xinhua/Stacie Scott)

The 2014 KIA Forte, which comes with the choice of a 148-hp, 1.8-liter four-banger or a 173-hp, 2.0-liter mill, is presented at the Chicago Auto Show in the McCormick Place, Feb. 7, 2013. The auto show kicked off its first of two media preview days on Thursday and will continue with a public show Feb. 8-19. (Xinhua/Stacie Scott)