@ESP,
I certainly didn't consider having to blast out a good chunk of a big ass hard rock. I say dynamite the b***h, but as you say it's probably not as simple or cheap as I anticipated.
@Blaze,
Honestly, I don't want the character and the length of the track change too much. As it is, this track's got a unique character. The problem with the final corner is, it's a low to medium speed corner which does not help following at all, and when coupled with the short main straight, makes for bad racing and boring races. My proposition takes care of that, without altering the overall character of the circuit too much.
I'll try with my mad photoshop skills:
http://www.imgim.com/hungamod.png
This extends the main straight from around 830 meters, to around 980 meters. The run from the penultimate corner to the final corner would then be 350 meters (let's admit, it's not long enough to be of much use - still better than it is atm imho). Maybe we could consider pushing the penultimate corner some 50-60 meters away too (tuff luck, go kart track), bringing the total distance between two corners to just over 400; which could be a DRS zone. Again, the character of the circuit would not be impacted too much, and the costs would remain relatively modest (to some of the proposals which I weren't aware of).
I think such a change would enhance the racing on this track greatly. Add to that we're likely going to get cars next year which will be better at following, and with a more powerful DRS, we might even get scraps between similarly paced top cars.
But of course, bitching from the fans stemmed from poor racing can't do it alone. Promoter/track leaseholder, the locals, and the commercial rights holders all come into play making it an awkward equation.