 Two days later, he was left without a drive, after Virgin announced d'Ambrosio to partner Glock in 2011.In 2011, di Grassi re-organised his management and sought a Pirelli tyre testing role.This was attained on 6 July and he developed Pirelli's Formula One tyres for the 2011 season, and drove the company's Toyota TF109 test car in five test sessions in order to develop the next generation of tyres, as well as attending several race weekends where he collected information about tyre performance and attended technical briefings.