@PM: I think that your idea would make the corner safe for lower categories like our Stock Car championship, but I think by solving that problem it would create a potentially dangerous corner for F1 cars, as they would take such hairpin at really high speeds without any runoff on the outside. The other possible track layout change (a slow hairpin) would be a bit of a knee-jerk reaction that would kill the appeal of Interlagos, and would also require changes to Bico de Pato. But anyway, the Brazilian Confederetion of Motorsport contacted the FIA in order to make chages to the layout of Cafe after Sperafico’s death in 2007 and again with the Sonderman accident, but Charlie Whiting denied (according to the CBA’s president).
I belive that the best solution is to bulldoze the grandstands on the outside of Café and extend the runoff area as far as possible. You could make a runoff as big as Laranjinha’s there, I think it would be of great help already. And also I think this is a warning for CBA, they should review and improve the safety on those cars.