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GMC Unveils Sierra
- General Motors unveiled the 2027 GMC Sierra 1500 in the United States, with deliveries due by the end of 2026.
- The Sierra provides four powertrains—a 2.7-liter TurboMax, a 3.0-liter Duramax diesel, a 5.7-liter V8 and a 6.6-liter V8—each with a 10-speed automatic.
- GMC will market six trims (Pro, Elevation, AT4, AT4X, Denali, Denali Ultimate) with base pricing near $65,000 and top models in the mid-$80,000s.
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