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GM Unveils 2027 GMC Sierra 1500 with New Trims, Engines

6/26/2026

Summary

GM Unveils 2027 Sierra

General Motors unveiled the 2027 GMC Sierra 1500 on Thursday with sales starting before year-end.
Engine options include a 2.7-L TurboMax, a 3.0-L Duramax diesel, and new 5.7-L and 6.6-L V8s paired with a 10-speed automatic.
Six trims—Pro, Elevation, AT4, AT4X, Denali and Denali Ultimate—replace the SLE and SLT models.
AT4X adds 35-inch Goodyear MT tires, a 2-inch lift, Multimatic jounce-control dampers, e-locking differentials and costs mid-$80,000, while Pro starts near $41,000.

Summary

GMC Unveils V8

GMC will unveil a 2027 Sierra that adopts an EV-style design while retaining a V8 engine.
The model sits between full-electric trucks such as Ford’s F-150 Lightning and hybrids like Ram’s V6-generator, targeting buyers who want modern styling without electric power.
A reveal is planned before the end of 2026, with dealer deliveries to follow shortly after, showcasing a ground-up small-block V8 program that signals fresh ICE investment.

Summary

GMC Upscales Interior

GMC has transformed the Sierra’s cabin into a luxury-focused space that rivals premium SUVs.
The new interior adds a 16.8-inch center touchscreen and an optional 11-inch passenger display, reshaping the dashboard.
The Denali Ultimate trim adds premium leather, open-pore wood trim, forged-wood accents, unique badging, and upgraded seating.
Dealers say customers now request the Denali version more often, reflecting a shift toward technology, comfort and personalization over payload and towing.

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GM Unveils 2027 Sierra

General Motors unveiled the 2027 GMC Sierra 1500 on Thursday with sales starting before year-end.
Engine options include a 2.7-L TurboMax, a 3.0-L Duramax diesel, and new 5.7-L and 6.6-L V8s paired with a 10-speed automatic.
Six trims—Pro, Elevation, AT4, AT4X, Denali and Denali Ultimate—replace the SLE and SLT models.
AT4X adds 35-inch Goodyear MT tires, a 2-inch lift, Multimatic jounce-control dampers, e-locking differentials and costs mid-$80,000, while Pro starts near $41,000.

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