The 2025 M2 Machines 1:24 Scale 1976 GMC Sierra Grande 15 Custom R136 2/Tones is a diecast toy truck featuring a detailed replica of the 1976 GMC Sierra Grande 15 in a blue color scheme. This collectible piece comes in an unopened box, making it a perfect addition to any diecast toy vehicle collection. The model is part of the M2 Machines brand's Sierra Grande 15 series, showcasing a high level of craftsmanship and attention to detail.