Pirelli will continue its 2011 tyre development programme in Spain later in October.
The Italian marque was back on track this week, where former test driver Nick Heidfeld's Pirelli replacement Pedro de la Rosa got to grips with the 2009 Toyota at the Valencia circuit.
The Spanish venue was artificially watered so that Pirelli's proposed wet and intermediate tyres could be tried for the first time.
The next tyre test will be at Barcelona at the end of the month.
"So far our schedule is going exactly to plan, and we look forward to continuing our work at what is a very exciting time for us during the next test sessions as well as back at base in Milan," said boss Paul Hembery.