The 908's sprint/high downforce front diffuser shows a rather aggressive center section with only two longitudinal strakes (one either side). The yellow highlights show the height difference between the top of the splitter and the bottom edge of the diffuser.
机翻＋略微调整：
908的冲刺赛/高下压力版本的前扩散器的中间部分攻击性十足，带有两片前侧扰流板（轮拱两侧各一个）。黄线描边部分标注了分离器顶部和扩散器底部边缘之间的高度差。
[最近貌似没有看到回复，就自己随便找了点资料，补充一下，如有说错的地方，欢迎吧友们指出。关于这个分离器（splitter）其实就是908的前扩散器+连接着的坡道，把气流劈成上下两部分，上面被坡道和车身减速，下面则快速流过底板，形成压力差，为车身前部提供下压力。（图示为10年和08年换装高下压力套件的908）]

At Le Mans 2009 Peugeot introduced their low downforce nose/diffuser. The modification amounted to an infill panel that redirected the air over the top of the suspension rather than through it. This was coupled with a modified front diffuser. Interestingly enough, a similar solution was tested at Sebring on the Audi R10 back in 2006.
The execution was somewhat inelegant with awkward surface transitions. Notice how the rising bodywork intersects with the horizontal face of the lower nose forming a pocket. According to Peugeot's Bruno Famin, "Because the tech rules have changed we have less downforce and less power, the compromise difference is different between 2008 and 2009. So we have had to deal with less downforce and less drag meaning we have had to adjust almost everything on the car, even if you can't clearly see it. So the new front end design is to allow us to balance the car aerodynamically whilst at the same time reducing drag. The drag reduction is necessary due to the equivalency changes and the consequent loss of power."
机翻＋略微调整：
2009年的勒芒，标致引入了他们的低下压力套件。改进部分主要是增加了一块覆盖件以重新引导气流从悬架上方流过而不是穿过悬架，前扩散器也随着这一改进而做出修改。有趣的是，在2006年的赛百灵，类似的解决方案曾在奥迪R10上测试过。
这一改变由于表面过渡不自然而显得不那么美观，可以注意到这块覆盖件与鼻锥下表面形成了一个凹陷空间。
当时的标致运动部技术总监Bruno Famin提到：“由于技术规则的改变，我们的下压力减小了，马力也减小了，2008年和2009年要采取的调整方案是不一样的。因此我们必须解决下压力减小的问题，并且更小的阻力意味着我们几乎要调整赛车上的每一个部分，包括你所看不到的那些。”因此新的前部设计允许我们平衡赛车空气动力学性能的同时减小阻力。规则的改变和随之而来的马力损失使得减小阻力势在必行。
[这里规则的改变主要指两个方面：①下压力方面：尾翼宽度从08年的2米缩减至1.6米；②动力方面：空气限流器尺寸从08年的39.9毫米缩减至38.3毫米（这里单指908的尺寸数据，奥迪因为不使用空调，空气限流器尺寸比908稍小一些）。（数据来自“Racecar engineering”网站的文章：“908HDi HAP”）]

The raised nose has become a common feature (if somewhat aesthetically controversial) among contemporary LMPs. Doing so frees up additional splitter area and improves airflow over the top of the diffuser. The small duct in the nose presumably helps draw cooling air into the footwell and the mechanical components located there (power steering).
机翻＋略微调整：
在同一时期的LMP赛车中，升高的鼻锥设计成了共有的特征（尽管在审美上有些争议）。这样做可以获得额外的分离器空间并改善扩散器顶部的气流。鼻锥前部的小孔可能有助于将冷却空气吸入驾驶舱脚部空间和冷却鼻锥里的机械部件（转向助力机构）。

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