At the 2001 Brazilian Grand Prix, the oval shape and the shape around the visor were painted to resemble the Brazilian flag, and at his 300th Grand Prix, his helmet once again carried the Brazilian flag colours. At the 2006 Monaco Grand Prix he had the helmet livery of fellow Brazilian and good friend Tony Kanaan, who in turn had Barrichello's helmet livery while racing in 2006 Indianapolis 500 which was held on the same day because they said it would be the closest either of them would get to competing in the biggest race of the year of the category the other raced in. At the 2008 Brazilian Grand Prix, Barrichello drove with a helmet in tribute to Ingo Hoffmann, former F1 driver and multiple Stock Car Brasil champion who was retiring that year. At the 1995 and 2011 Brazilian Grands Prix, he wore a helmet painted to include elements of his own helmet design, and the classic design of Ayrton Senna's helmet.