दशपुरुषो द्वादशान्तरो रथः ॥ कZ_०२.३३.०३ ॥
daśapuruṣo dvādaśāntaro rathaḥ
A chariot is (standardized as) ten puruṣa (in measure/capacity) and twelve antara (in spacing/measure).
To enforce uniformity for training, maintenance, spare parts, and predictable battlefield performance.
It simplifies inspection, reduces contractor manipulation, and enables scalable production in workshops.