The International Superstars Series resumes this weekend, with the second round of the season at the Circuit Ricardo Tormo in Valencia, Spain.

At the opening round of the season at Monza it was all about Mercedes. Romeo Ferraris took a double win, with Max Pigoli winning the first race and female racer Michela Cerruti taking a popular win in the second race. It was enough to give Cerruti the championship lead heading to Spain, but she'll have a tough job holding onto it.

CAAL Racing driver Luigi Ferrara will be amongst the challengers in his Mercedes, with Johnny Herbert hoping for a better time of it in his Romeo Ferraris entry.

Away from Mercedes, BMW will hope that the twistier Valencia circuit will play into their hands, with reigning champion Thomas Biagi eager to return to winning ways, along with BMW Team Italia teammates Stefano Gabbellini and Alberto Cerqui – the 18-year-old having made an impressive Superstars debut at Monza.

Also amongst the BMW ranks will be the two cars of Campos Racing – the Spanish team hoping for success on home soil. Drivers Sergio Hernandez and Isaac Tutumlu will be cheered on by the local fans.

After racing towards the front in Monza and securing their maiden podium, Maserati will expand to two Quattroporte's run by the Swiss Team operation. Andrea Chiesa and FIA GT champion Andrea Bertolini will get to drive one car each from the Italian marque after sharing driving duties at Monza.