HELP - 360 headlight problem

My 360 is starting to display signs of typical Ferrari electrical wizardry, Some weeks ago I noticed that under hard acceleration or braking the headlights would go off and come back on again, this then escalated to going off at any speed over 76mph (satnav speed). I checked all connections, fuses etc and all were great. Last night returning from a top speed run all was well, but after about 40 minutes they started flickering and then went dead. We drove for about 2 miles in the darkness before finding a safe spot to pull over. As we stopped they came on again, well we drove on slowly and got home ok. Now thinking about the fuse box in the luggage compartment where these fuses are I remembered there being 2 or 3 main 60 amp fuses which I think are fuses for the fuse box itself. Could there possibly be a bad fuse or connection feeding the fuses (as both lights go out simultaneously) or could there be another fault. As you can imagine it’s not easy doing fault elimination when the fault is sporadic and only occurs at night while driving. Any suggestions appreciated.

 

Its a 2000 year, normal bulbs, not xenon.

 

Cmon guys, no-one have a clue? could it be the mysterious clicking relay that I hear now and then, seems to be a common fault for 360's. Have asked a few people which relay is the culprit but no reply yet.