Mclaren have new underbody aerodynamics ( testing today ) they expect to get an extra tenth of a second from 今天果然测试鸟新的车底空力套件，希望能获得额外的惊喜吧？
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However , there is often a practical problem with this concept : with a ground clearance of just 50mm and a smooth underbody , the cars often slide over the surface of the gravel trap without braking sufficiently 然而，此概念总是会存在着一个实践性的问题：由于离地距离仅为50毫米且底部光滑，赛车总是会滑过沙砾缓冲区的表面，无法及时地刹
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Quality evaluation and audit for vehicle samples : the items include paint appearance , sheet metal , interior / exterior trim , static squeak & rattle / function , engine compartment / underbody , drive test , water test and so on 整车抽样质量评审：项目包括外观、板金、内外饰、静态异响/功能、驾驶测试、发动机舱/底盘、淋雨试验、法规标准符合性等。
