This undated photo provided by General Motors shows the 2015 GMC Yukon XL SLT. General Motors, which sells more SUVs than any other company, is unveiling a redesigned SUV lineup on Wednesday, Sept. 11, 2013. (AP Photo/General Motors)

Associated Press
This undated photo provided by General Motors shows the 2015 GMC Yukon XL SLT. General Motors, which sells more SUVs than any other company, is unveiling a redesigned SUV lineup on Wednesday, Sept. 11, 2013. (AP Photo/General Motors)
This undated photo provided by General Motors shows the 2015 GMC Yukon XL SLT. General Motors, which sells more SUVs than any other company, is unveiling a redesigned SUV lineup on Wednesday, Sept. 11, 2013. (AP Photo/General Motors)
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