IDM Supersport 300: Marvin Siebdrath Celebrates His First IDM Victory
It wasn't Luca de Vleeschauwer (18, Belgium), who was fastest in practice, but his teammate Marvin Siebdrath (Wildenfels, 16, both RT Motorsports by SKM-Kawasaki) on Kawasaki who won the first race of the IDM Supersport 300 ...