The FIA introduced more stringent tests on the cars at the Malaysian race to ensure floor mounting systems used by Ferrari and BMW Sauber were not in breach of the regulations. After the first race of the season in Australia, the McLaren team had requested clarification of the rules regarding systems that allowed the front of the car's undertray to move upwards under aerodynamic loading at high speed. "Autosport" magazine reported that this movement would potentially increase straight line speed. Massa and Räikkönen said the performance of the Ferrari F2007 car would not be compromised in any way by the required modifications.