Auto News Roundup 7-10-09: Lexus IS C in demand, GM pilots EBay program, AMG will make SLS supercar plug-in

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-- New Lexus IS convertible demand is outpacing supply. Lexus planned for 1,600 a month globally but sold 1,200 in first month in U.S. alone. Leftlanenews.com

-- Engineers from Mercedes-Benz AMG are developing a plug-in electric version of the upcoming SLS supercar tentatively planned for production in 2015. Autoweek

-- Previous rumors of GM changing blue logo to green are denied. Edmunds

-- GM launches pilot program with EBay and will allow consumers to ‘bid on vehicles, including a predetermined buy-it-now price.’ Edmunds

-- Shelby unveils Super Snake package on Ford Shelby GT500 that can produce up to 725 horsepower. Leftlanenews.com

-- Joni Gray