Toyota to debut electric concept to Detroit auto showDavid Phillips / Special to The Detroit NewsToyota Motor Corp. said today it will introduce an all-new battery-powered concept car at the North American International Auto Show next month in Detroit. The small concept electric car, according to Toyota officials, is based on a subcompact car the Japanese automaker hopes to begin marketing in a few years. Responding to consumer concerns about volatile energy prices and government regulations to curb greenhouse gas emissions, Toyota wants to produce a small 'city car' with a limited driving range but with an affordable price tag of about $20,000, analysts say. The concept has been engineered for short-range driving -- such as brief commutes, everyday shopping and other errands, but won't be aimed at motorists in need of long-distance transportation. For more versatility, Toyota is developing a so-called plug-in hybrid car, or an electric car with a small gasoline engine on board to charge its battery when it runs dry. That vehicle is scheduled to be introduced in late 2009. Such plug-in hybrids offer extended driving when needed.