2021 GMC Yukon will have an AT4 version, loads of tech and diesel power!
We're talking Queen Mary 2 here as GMC reveals the all new the 2021 Yukon and Yukon XL, upping the ante by offering class-leading technology, an AT4 version and a turbo-diesel, an engine I loved in my recent GMC Sierra test. Power, what are my options? The most powerful engine in the full-size SUV segment, is
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