10:12 A.M. EST – RM Auctions has just been chosen by the Bertone Museum to offer six exceptional motor cars and one-off design concepts from the celebrated Italian manufacturer and coachbuilder at its Concorso d’Eleganza Villa d’Este sale in Italy on May 21.

The 1967 Lamborghini Marzal prototype driven by Prince Ranier and Princess Grace at the 1967 Monaco Grand Prix

Chief among them: this out-there 1967 Lamborghini Marzal prototype, s/n 1001, driven by Prince Ranier and Princess Grace at the start of 1967 Monaco Grand Prix, expected to fetch up to $2.5 million.

Stay tuned for more.

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