The drivers for the Sauber Junior Team by US Racing – Charouz in the German and Italian F4 championships are reigning South East Asia F4 champion Alessandro Ghiretti (17), Czech Republic National Team karting graduate Roman Staněk (14) and French F4 Junior Champion Théo Pourchaire, 15-years old. Reaction Roman Stanek “This is an important season for me as I move up from karting, but I’m pleased … Continue reading Ghiretti, Pourchaire and Stanek join Sauber F4 campaign