Today I managed to nick the side wall of my 235/40/r19 P Zero Nero on a broken kerbstone.
The wheel nuts were of course virtually impossible to remove, but I manged it with the standard Alfa wrench by use the sharp foot strike method (last resort).
However, when it came to the locking wheel nut, it was impossible to get to apply enough forward force to support the wrench whilst apply the turning force.
An emergency call to my dad later and a had possession of a standard cross wheel brace or 'knuckle bar'. I applied the maximum force pushing down with left hand, pulling up with right. There was a crunch and something gave. It was the raised 'positive' part of the lock that had sheared, basically tearing away from the head of the lock, and crumbling into about parts - SH*T!!! - now I'm in trouble.
A quick call to Julian M at SGT put me touch with Allan at Meridian Milano at Portsmouth. He carries the whole Alfa locking wheel nut keys in stock. He so very kindly sold me the replacement key and will order another into stock.
Looking at the new key, it would seem that the old was either made of a different and defective material, or had been subject to so much stress by a Minkey with an Air Gun that it had made the steel much darker, almost blue as if heat had tarnished it.
The new key held fast. I needed to use a 2 foot extension tube on a 8'' socket whilst support the outside edge of the tool with the scissor jack to apply equal force to the nut.
So, nuts off! WooHoo! Alas, the alloy wheel had corroded onto the disc hub face. It required a long 12'' flat blade screw driver and a small hammer to tease the wheel off the hub, leaving some small dinks in the hub face as a souvenir.
I'm almost certain the wheels haven't been off before. It would seem that the process for fitting wheels at ProDrive (mine is the Brera S) does not involve any anti seize compound or the use of a torque wrench. I would imagine the same is true for our Italian brothers too.
If you have a Brera S, and haven't yet taken the wheels off to lovingly polish their backsides, I would recommend that you get yourself a spare key and some long long wrenches and arrange a day to spend removing, wire brushing, Copper Easing and Torquing up yer Boots!!! Do it in the comfort of your own home, rather than at the side of the road in the freezing cold with abusive van drivers for company
A big big thanks again to Allan @ Merdian, and Julian for being so helpful! Most impressed with the Alfa Dealers I've encountered so far...