California DOT Bi-level "Southern" Business Class carThese are N scale 3D printable files for the California Department of Transportation (CDTX) Bi Level "Southern" Variant Business Class Car the older of the two variants of California's state supported bi level passenger cars, originally placed in service on the Los Angeles to San Diego corridor. Modelers should note that the California bi level fleet comes in two distinct variants: this Southern variant (the older cars associated with Southern