Serafino and Carlo Riva visit the first Riva boatyard in Sarnico with a group of drivers.Jean Dupuy during a visit to the F.lli Riva boatyard. From left to right: drivers Carmagnani, Guerini, Sestini, and Dupuy; Serafino and Carlo Riva. Dupuy had asked Serafino to build him a boat to try to beat the world speed record for Class X-1000 Outboard.