>>jong: pirelli's hq is actually built around this lovely old country house. it's been here since the 15th century...long time. but the time period between pirelli winning the f1 contract and the first race of the 2011 season; not very long at all, just 9 months. >>gori: it was awful...awful. we got the green light end of june and then we were on the test track in august. >>boiocchi: the 19th of august i will remember for all my life...the first tires on the circuit in mugello. >>reporter: the brief was to provide a range of 6 tyres that would degrade at various rates...but testing was plagued by bad weather....and while the tyre supplier gets detailed information on the different surfaces, speeds and temperatures offered up by f1's 20 tracks...it is impossible to replicate race conditions..... >>boiocchi: what is another variable is the number of car running altogether that are making also sort of rubberizing surface. during friday, saturday and sunday races. this is possible only during the races. >>reporter: initially at least....approval from certain drive