 When the DTM resumed as Deutsche Tourenwagen Masters in 2000, he returned to the series, winning at the age of 50 years at the Sachsenring circuit, only to retire once again.Ludwig returned as a "hobby pilot" to the Nürburgring Nordschleife when given the opportunity to drive a high power vehicle.The years 2004 and 2005 saw him enter the 24 Hours Nürburgring with Uwe Alzen on the Jürgen Alzen Porsche 996 GT2 Bi-Turbo.