[GoodLover]

The problem with aero' was that it was supposedly difficult for a car to close up to the one in front because the turbulent (dirty) air reduced front downforce, leading to understeer. That's why they had the adjustable front wings a few years back, the wider front wings and narrower rear wings were intended to reduce the dirty air behind the cars and the front wing to be les suceptable to this turbulent air.
Seems to be working pretty well as there's a lot of close passing.

Someone mentioned using control wings, but the bodywork and, of late, exhausts make a major difference on how well they work by altering the airflow behind and ahead of the front and rear wings, respectively.

main problem of the DRS, for the teams/drivers seems to be that they have to decide what to go for with the top gear ratios - slightly short to maximise top speed without DRS (I figure that'd be what the guys that expect to qualify well will chose, expecting to have to do little passing) or slightly taller, so they have a speed advantage with DRS and can actually overtake. We've seem several ocassions where a car has pulled out to pass with DRS but hit the limiter before they can do so - perhaps they should have an extra 2/3/4 hundred rpm to go with the DRS?

Don't really like the new reg's coming up, but as F1 is supposed to be technology driven - Caterham have just announced a partnership with GE that both sides are very happy with, BTW - high efficiency turbo-charging and energy recovery has more real world potential than exotic high rev'ing NA engines.