Car tech dazzles at Consumer Electronics Show

US automaker Ford even chose Las Vegas over next week's Detroit Auto Show to reveal its first all-electric car, the Focus Electric, which can get up to 100 miles (160 kilometers) on a single battery charge and goes on sale this year.

Audi attracted crowds to its CES stand with a demonstration of a "head-up display" that resembles a videogame, projecting important information like a car's speed or directions in hologram fashion on the windshield directly in front of the driver.

"It shows you where to turn, the speed limit and your speed so you don't have to look down at the dashboard," said Jessica Silvia, a spokeswoman for the German automaker, which has also been experimenting with self-driving cars.

Audi's self-driving cars were not seen zipping around CES but a concept car developed by General Motors was -- the two-wheel EN-V, or Electric Networked Vehicle, which can park itself or be summoned using a smartphone.

Test rides in the two-seater bubble-like EN-V, which was making its debut in the United States after first being shown at the 2010 World Expo in Shanghai, were a popular diversion among CES attendees.

Ford showed off the 2012 Ford Focus version of MyFord Touch, a touchscreen navigational and entertainment display mounted on the dashboard that besides being touch-responsive can also understand 10,000 voice commands.