
2021 GMC Sierra 3500HD AT4
*Estimated taxes and fees. All amounts reflect the dealership’s listing. DriversHub assumes no liability for omissions, inaccuracies, or non‑disclosed fees in dealer‑supplied pricing.
Negotiation Potential
44 days at this dealer
Time on the market may give you some room to negotiate.
0 active alternatives
Similar vehicles nationwide
Limited availability reduces your negotiating room.
Ask Miles about this car, what it should cost, and how to handle the dealer.
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Miles Overview
The 2021 Sierra 3500HD is GMC's heavy-duty pickup, built for serious towing and hauling work. It drives with the authority you expect from a heavy-duty truck, though the ride can be stiff when unloaded. The cabin is roomy and quiet, with upscale touches on higher trims like the Denali. You get a choice of regular, double, or crew cab, and the bed is built to take abuse. The AT4 sits above the SLE and SLT but below the Denali, adding off-road hardware like skid plates and a two-speed transfer case. The AT4's unique suspension and Rancho shocks give it a more composed ride on rough trails than the SLT, at the cost of a stiffer highway feel.
Vehicle Specs
Miles Overview
The 2021 Sierra 3500HD is GMC's heavy-duty pickup, built for serious towing and hauling work. It drives with the authority you expect from a heavy-duty truck, though the ride can be stiff when unloaded. The cabin is roomy and quiet, with upscale touches on higher trims like the Denali. You get a choice of regular, double, or crew cab, and the bed is built to take abuse. The AT4 sits above the SLE and SLT but below the Denali, adding off-road hardware like skid plates and a two-speed transfer case. The AT4's unique suspension and Rancho shocks give it a more composed ride on rough trails than the SLT, at the cost of a stiffer highway feel.
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Estimated Monthly Payment
$712
6% APR for 72 months
*Estimated taxes and fees. All amounts reflect the dealership’s listing. DriversHub assumes no liability for omissions, inaccuracies, or non‑disclosed fees in dealer‑supplied pricing.
Negotiation Potential
44 days at this dealer
Time on the market may give you some room to negotiate.
0 active alternatives
Similar vehicles nationwide
Limited availability reduces your negotiating room.
Ask Miles about this car, what it should cost, and how to handle the dealer.
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About this Dealer
Independent Dealer
Highline Motor Cars is a independent dealer in Attleboro, MA. Their documentation fee is $395.
$395
Doc fee

