谁是"擎天柱"——西星5700和5700XE卡车对比介绍

Who Is Optimus Prime—Introduction of Western Star 5700 and 5700XE

通过对搜集的5700和5700XE图片与技术资料进行对比发现，用途的不同造成了2者之间的差异，前者力求展现力与美，后者强调经济和实用。

Since 1984, the o riginal truck model of the Optimus Prime in the movie of Transformer has changed dramatically, which had somehow reflected the evolution process of heavyduty trucks in the States. This article provided a brief introduction of Western Star 5700—the original model of Optimus Prime in Transformer 4, and its quantity production model 5700 XE as well.