Yeah, a few differences, mostly cosmetic, plus the added holes in the hood tusks and the C-pillar gusset re-shaping. The A and B pillars, roof and bed profile lines, front structural bumper and drive unit tusks, door opening shapes and hinge mounts, charge port, and seat mounts are all very-close matches. The truck-equivalent to 23andme would probably find about a 90% DNA match The Silverado engineering team probably pioneered a lot of the basic structural-bone details, saving the Sierra team a bunch of time that could then be used to optimize the design.I see a few differences here and there... also looks like they found places to reduce weight on the Sierra.
Are you sure? GM has described "WOW" mode for the Silverado and Max Power mode for the Sierra.
Hmmm,Are you sure? GM has described "WOW" mode for the Silverado and Max Power mode for the Sierra.