Insight undertray

[greenmatt]

Originally Posted by Julian Edgar

I was looking for a detectable change. The Prius front undertray gave that; the Honda rear undertray did not.

Therefore, as the article states, the rear undertray was, for me, ineffective.

As was done initially on the Prius, the depicted undertray was a trial - if it had made a detcetable improvement, it would then have been further refined.

Re wheel skirts - this was a trial of an undertray!

Maybe you could try this on the peugeot to see if it makes more of a difference to a relatively dirty aero car.