The U.S. automaker's plan for the battery-powered Cadillac, which will be built in 2013 as a 2014 model, would revive plans for GM's Cadillac Converj concept car that won acclaim for its bold design when shown at the Detroit auto show in 2009. The sources asked not to be identified because the product plans have not been announced.
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GM also is exploring building an all-electric subcompact car for the Chevrolet brand, the sources said. The battery for that car's powertrain would be supplied by A123 Systems Inc, which was just awarded a contract by GM for unspecified future electric vehicles.
(Reporting by Ben Klayman in Detroit, editing by Dave Zimmerman)