Andrea Bertolini and Luigi Ferrara took a win each at the second round of the International Superstars season at Valencia's Circuit Ricardo Tormo.

Having been the quickest man for much of the weekend, Bertolini led Race 1 from pole position to give the Swiss Team Maserati Quattroporte its maiden victory.

Ferrara finished in second place in his CAAL Racing Mercedes C63 AMG, with reigning Thomas Biagi third. The Team BMW Italia pilot recovered from contact made with Francesco Sini's Ferlito Motors Jaguar XF on the opening lap.

Max Pigoli finished fourth in his Romeo Ferraris Mercedes, with BMW's Stefano Gabellini fifth. Johnny Herbert finished sixth for Romeo Ferraris, having passed Fabrizio Armetta's Motorzone Chevrolet. Sergio Hernandez and Campos Racing finished eighth on their home circuit, with Ermanno Dionisio and Alex De Giacomi rounding out the top ten.

Michela Cerruti, the hero of the opening round in Monza and the points leader, retired her Mercedes after three laps.

Ferrara got the better of Bertolini at the start of Race 2 to take the lead of the race, which he never relinquished. Bertolini had to settle for second, with Pigoli finishing third. He resisted the advances of Gabellini, who eventually ended up conceding fourth to teammate Biagi.

Ferrara scored a first of a win of the season in race two to secure the points lead

Dionisio finished sixth for Audi Sport Italia, ahead of Sini and Ferrara's teammate Riccardo Romagnoli. Cerruti ended up ninth, with Alberto Cerqui tenth for BMW. Herbert ended up in the gravel in the closing laps.

Ferrara's win gives him the points lead, with Pigoli second, Cerruti third and Bertolini fourth. The next round takes place at Portimao in Portugal in two weeks time.