Allied Fiberglass Co. was a manufacturer based in Sacramento, California, known for taking over production of the Kellison coupés and roadsters in the mid-1960s. The company marketed these fiberglass-bodied vehicles under the Astra name, offering several distinct versions tailored to different chassis lengths and configurations. The lineup included the J-5 coupé, the largest model, designed to fit full-size American chassis, and the J-4 coupé, intended for medium-length frames such as…