2020 GMC Sierra 1500 Price: $48,500 Manhattan, NY More Manhattan, NY GMC Sierra 1500's 2023 $66,285 19,045 Miles 2024 $81,040 6 Miles 2023 $58,950 7,637 Miles 2018 $36,268 Miles 2021 $36,476 Miles 2018 $24,900 Miles