The growing global demand for environmentally-friendly and resource-efficient materials, in recent years, has led to increased interest in sustainable alternatives across many industries, including automotive. The focus of this thesis is on replacing conventional thermoplastic materials, used in a number of automotive interior applications, with more sustainable thermoplastic materials. The main goal of the study is to determine feasibility for using selected recycled thermoplastics for interiors by evaluating the mechanical performance of selected as they are processed through additive manufacturing technologies. Research methods involved the conversion of pellet form, thermoplastic materials to printable filament which can be used in Fused Deposition Modeling (FDM) type 3D printers.