That looks absolutely sensational! For me, the 60's and 70's were the golden era of motor sport, and the enthusiasm for sports car driving seems a lot greater then than it is now. Australia is dominated by "V8 Supercars" (family V8 sedans, Fords and Holdens practically the same car despite different manufacturer's!) and its associated mentality. Adelaide even tried to have a "LeMans" style race for the mellenium NY, which flopped because it was a) not advertised properly and b) no one knew what it was because it wasn't F1 and it wasn't V8 Supercars.
Check out the Victory by Design Porsche DVD which has some excellent footage from the Targa Florio, including race and practice. One practice session covered is a driver talking about the road conditions while driving a Porsche 911 targa "illegally" learning the track. It was funny to watch him slow down for a police car, but quite comfortable with doing 120km/hr+ in small the town streets. Can't get away with that in this day and age I guess...
~Benjamin