The 2012 Hyundai Elantra on display at the North American International Auto Show, Detroit, Michigan, USA, North America

The Porsche 911 Carrera Cabriolet on display at the North American International Auto Show, Detroit, Michigan, USA, North America

The Nissan Leaf electric vehicle on display at the North American International Auto Show, Detroit, Michigan, USA, North America

The 1952 Mercedes 300SL race car on display at the North American International Auto Show, Detroit, Michigan, USA, North America

The Nissan E-NV 200 concept electric van on display at the North American International Auto Show, Detroit, Michigan, USA, North America

The Honda Personal-Neo Urban Transport, P-NUT, on display at the North American International Auto Show, Detroit, Michigan, USA, North America

The BMW i8 concept plug-in hybrid on display at the North American International Auto Show, Detroit, Michigan, USA, North America

A Smart car designed by "Bill the Artist" on display at the North American International Auto Show, Detroit, Michigan, USA, North America

The Volkswagen e-Bugster concept electric car on display at the North American International Auto Show, Detroit, Michigan, USA, North America

The Hyundai Elantra plug-in electric car, developed for future production, on display at the North American International Auto Show, Detroit, Michigan, USA, North America

The Toyota Sienna Ramp Van which allows easy weelchair access, on display at the North American International Auto Show, Detroit, Michigan, USA, North America

The 2013 Ford Focus ST on display at the North American International Auto Show, Detroit, Michigan, USA, North America