Auto News Roundup 9-01-09: GM combines Buick and GMC dealers, Toyota unveils Auris hybrid and Prius plug-in
-- GM to combine all Buick, GMC dealers by next year. Leftlanenews.com
-- Automakers spend less on August incentives, thanks to Cash for Clunkers. Edmunds/Auto Observer
-- Honda Accord Crosstour officially joins lineup for 2010. Autoweek
-- Toyota to unveil Auris hybrid and Prius plug-in Hybrid Concept at Frankfurt Show. Edmunds/Green Car Advisor-- 2011 Hyundai Sonata's radical new look is leaked before launch. Cars.com
-- Joni Gray
