The vehicle security inspection system may include multiple automated detection devices for detecting explosives, weapons, contraband, etc. which may be contained on or within a motor vehicle. The system includes a tunnel or enclosure with a moving conveyor therein. A motor vehicle is driven into the entrance to the enclosure, and conveyed past the series of sensors by the conveyor belt. One or more surveillance cameras may be installed in the enclosure, as well. The various sensors incorporated therein check the vehicle for illegal articles, and the vehicle is released from the enclosure. A control gate may be provided as a door at the exit of the enclosure, and/or as a gate guiding vehicles along their intended route or to a detention area, as appropriate. The system may be provided either as a portable device or as a permanent installation, and/or may be configured as a multiple lane inspection system.