sentences:  Vietoris made his debut in the DTM in 2011, driving for Persson Motorsport, before being promoted to HWA for the 2012 DTM season.Vietoris started his career through karting, the most common entry point for all racing drivers, in 1994.Nine years after starting his karting career, the young German was the national Junior Kart champion and a year later came second Western German Karting Championship.