Vallelunga 2018: Renato Ambrosi e Giovanni Serio winners of their class and of their grouping at the 300 Km. Photo by Dario Pellizzoni. - Scuderia del PortelloScuderia del Portello

Vallelunga 2018: Renato Ambrosi e Giovanni Serio winners of their class and of their grouping at the 300 Km. Photo by Dario Pellizzoni.

Vallelunga 2018: Renato Ambrosi e Giovanni Serio winners of their class and of their grouping at the 300 Km. Photo by Dario Pellizzoni.

Vallelunga 2018: Renato Ambrosi e Giovanni Serio winners of their class and of their grouping at the 300 Km. Photo by Dario Pellizzoni.