Hi Gianni, there was an Alonso version of the 599 GTB which I am sure had HGTE pack and a special livery. I can't put my finger on the pictures but it had Rosso with Bianco roof, Italian flag stripe, the same Italian flag rear boot spoiler livery and Alonso livery on the C pillar/buttress.
My guess is this car has taken some of the details from those special cars and included them.
It's a nice one either way, and by the way the 599 is a very powerful car but not at all hard to live with.
Current Fcars: 360 Modena
Gone but not forgotten: 360 Spider, 575M, F430.
Other stuff: '71 Holden GTS Monaro, '80 BMW Alpina B9, '74 Porsche Targa, Caterham, MB CL500, Land Rover Discovery.