 Complete the following phrase:  In keeping with their Italian roots, the Ferrari works team has always kept a red colour in the tradition of rosso corsa, the national racing colour of Italy, except for last two races in when Enzo Ferrari let his cars enter by NART in American blue and white colours to protest against Italian racing authorities. However, Ferrari cars entered by non-Italian privateer teams wore their respective national racing colours until the 1961 Belgian Grand Prix when Olivier Gendebien from Belgium privately entered a Ferrari car in a Belgian racing yellow colour. Over the years, rosso corsa has been combined with white parts and with various sponsorship schemes, but Ferrari has never fully let their cars be dominated by the sponsorship livery like many other teams have. This changed in the 1990s when Ferrari replaced their traditional rosso corsa colour with a Marlboro red which is noticeably lighter; this colour remains despite the ban on tobacco sponsorship. Ferrari had Marlboro as the teams title sponsor renamed as Scuderia Ferrari Marlboro from until the 