The eleventh generation Suburban and Yukon XL were unveiled at the 2006 Los Angeles Auto Show in January for the 2007 model year. Production of the redesigned GMT900 Suburban and Yukon XL began at Janesville Assembly and Silao Assembly in March 2006, with the vehicles arriving at dealerships in April.
The new models were redesigned with more modern, less boxy styling, already seen on the previously released 2007 Tahoes and Yukons. The exterior features a more aerodynamic shape, made partly by a steeply raked windshield angle. The new design has less drag than previous models, making it more aerodynamic.
The interior has a redesigned dashboard and improved seats. It still retains its 9-passenger seating availability, which is available on LS models only. LT2, and LT3 models have leather seating and available 6-, 7-, and 8-passenger seating. There is a Z71 package available on LT2 and LT3 models which includes two-tone leather seats. All Mexican-built Suburbans including the 9-seat models offer the special two-tone leather seating used by the Z71.
Source: Wikipedia, 2013