A conveyance and methods for x-ray inspection of an object. The conveyance has a bed with attached wheels and detector elements disposed along a pontine structure coupled to the conveyance. A source of penetrating radiation is coupled to the conveyance and disposed so as to irradiate each of the detector elements from a single position. An automated manual transmission couples power from an engine to a set of the wheels of the conveyance, both for road travel and for x-ray inspection.