Diffuser design, per Lotus blog

[Thenorm]

nah, owl wins. an owl is so quiet, even it can hear itself

[serialk11r]

I walked past a Tesla Model S today and noticed the rear end seems to follow the "philosophy" described here. Strakes extending down from the diffuser where the inside of the wheel is, and the bumper actually goes inward behind the rear wheels. Food for thought.

[kach22i]

Great big photo of that Tesla -S detail here:
http://image.motortrend.com/f/roadte...w-at-track.jpg

[bitmap]

Speaking of Model S, here is a proper picture of that diffuser

[chefdave]

ummmmmm food for thought. if i could do something similar on my motorhome would hope for more stability in crosswinds. dont suffer from rear end lift if anything rear end lift would benefit handling but saving fuel and being more stable in cross winds would pay bigger divdends. all this will have to wait until i have built my new exhaust. details on idea for exhaust will be posted in appropriate forum.