Vehicular rhymes with:
curricular, extracurricular, particular, perpendicular, testicular, avuncular, binocular, cardiovascular, circular, curricular, extracurricular, gastrovascular, intermolecular, jocular, molecular, muscular, particular, perpendicular, secular, semicircular, spectacular, testicular, unspectacular, vascular, vernacular
Vehicular sounds like:
vascular, vogeler, vogler, vosler, vossler