GMC Sierra 2019–2026 vs GMC Sierra 2500HD 2020–2023 size comparison
GMC Sierra 2500HD 2020–2023 is 462 mm (7.8%) longer than GMC Sierra 2019–2026. It is 16 mm (0.8%) wider, 109 mm (5.7%) taller and 292 mm (7.8%) longer in wheelbase. Boot space with the seats up is 1781 L and 1971 L (+190 L).
| Dimension | GMC Sierra 2019–2026 | GMC Sierra 2500HD 2020–2023 | Difference |
|---|---|---|---|
| Length | 5890 mm | 6352 mm | +462 mm (+7.8%) |
| Width | 2063 mm | 2079 mm | +16 mm (+0.8%) |
| Height | 1918 mm | 2027 mm | +109 mm (+5.7%) |
| Wheelbase | 3745 mm | 4037 mm | +292 mm (+7.8%) |
| Boot | 1781 L | 1971 L | +190 L |
GMC Sierra 2019–2026 dimensions · GMC Sierra 2500HD 2020–2023 dimensions