Toro Rosso Formula 1 racer Jaime Alguersuari claimed victory in Felipe Massa's annual International Challenge of Go-Kart Champions in Florianopolis, though only after Ferrari protege Jules Bianchi was disqualified.
Bianchi had won both Saturday night's wet race and today's dry heat on the road, but was excluded from the latter event for a weight rules violation.
That handed the heat and outright win to Alguersuari, who had been second behind Bianchi - just ahead of Massa - in race one.
Lucas di Grassi and Rubens Barrichello completed the race two podium.
The star-studded entry also featured fellow F1 men Jerome D'Ambrosio, Tonio Liuzzi, Adrian Sutil and Pastor Maldonado, plus ex-grand prix racers Nelson Piquet Jr, Antonio Pizzonia, Luciano Burti, Ricardo Zonta, Enrique Bernoldi, Christian Fittipaldi and Gianni Morbidelli, and IndyCar's Tony Kanaan, Vitor Meira and Ana Beatriz.