But you can't just let the cars go as fast as possible - they're already generating nearly 5g on braking and sustained 4.5g on some corners. I'm amazed that the drivers can withstand that as it is for two hours.
Faster cornering means tracks will have to enlarge their run off areas. There's no debate about this as we're not in the 60's now, people actually care about driver and spectator safety. Allowing unlimited corner speeds simply wouldn't be realistic.
Of course making cars technically open would mean less and less driver input and involvement - in order to win the cars would need faster reactions than mere humans can achieve, so we'd have to let the computers take control - what fun.
Then you've got the cost. We'll be back to the bad old days of the biggest cheque book wins races, and by a long way, what fun is that?
Acid, I think we all agree that on the face of it lowering aero influence could improve racing, but clearly it's not that straightforward as it would have been implemented by now. A big part of the problem is that the overtaking working group is made from the teams, and they're not going to want to give up their technical innovations - it's like asking a classroom of pupils if they want to do homework or not - of course they don't, and that's why you have to tell them, not ask them.