RADAR assemblies and related structures for vehicles. In some embodiments, a RADAR assembly may be provided comprising a RADAR module, a bracket coupled with the RADAR module, and a conformal layer comprising a surface configured to conform with and be positioned adjacent to a surface of a portion of vehicle fascia. The conformal layer may be configured to decrease the reflectivity of electromagnetic radiation from the RADAR module relative to the vehicle fascia. The RADAR assembly may be configured to be coupled with the vehicle fascia such that the conformal layer is spaced apart from the vehicle fascia to define an air gap between the conformal layer and the vehicle fascia, and the air gap may be configured to further decrease the reflectivity of electromagnetic radiation from the RADAR module relative to the vehicle fascia.