[lunarhighway]

wizardwizard

some interesting ideas. i think some bmw have a duct behind the radiator that takes the radiator air out along a smooth path, some racecars also do think trough vents in the hood.

as for the lift-downforce spoiler... lift is generally not very good in cars... yes it virtually makes the car lighter, but the first effect of this is loss of traction... my car fequently spins its front wheels in the wet, when you have to merg into a bussy street from standstill...it's never excessive but under these situations you want some grip as well for safety.

perhaps lift can work for dedicated hypermilers but in general it will make a car unsafe.
(and once you's ok with removeing some safety a light 80's style car without airbags and side impact beems will save more weight than the lift would compensate for)

so personally i'm not to fond of the idea. the theory is good, but there's side effects you don't want... perhaps it could have some use on tracked vehicles like trains..