The Zagato is drilled like the original Competiziones although I think there's even a bit more on this version - like the tops of the subframe turrets and above the rear window. It seems a reasonable price for a car prepared like this.
'Drillium' reminded me of an article on Jack Brabham in this month's Motorsport. His first car was a Cooper Bristol. The crankshaft on its 2 litre Bristol engine was so spindly that the mass of the flywheel and clutch could snap it just by spinning the car. Jack fitted a lighter clutch and machined the flywheel until he'd got it down to 15lbs rather than the original 85..............