DTM rights holders ITR say they are open to U.S. manufacturers joining the championship and have invited representatives to this year's Hockenheim season opener.
A new American-based championship, which aims to start a series for cars built to DTM rules in the U.S. by 2016, was announced on Tuesday.
BMW joined Mercedes and Audi on the DTM grid in 2012, with Bruno Spengler delivering the title in a tense season finale. ITR boss Hans Werner Aufrecht explained that while German manufacturers are keen to explore the U.S., he believes foreign manufacturers want to have a presence in Germany.
"We already have had conversations with the three big American manufacturers," he said. "Now we have to offer these colleagues the opportunity to take a look behind the DTM curtains. This certainly will happen around the season kick-off [May 5] in Hockenheim. Just as the German manufacturers enter important markets worldwide, the American and Japanese manufacturers have the goal to make an appearance on the German market."
Aufrecht also believes that the current regulations won't restrict opportunities for prospective manufacturers.
"These days, all the car manufacturers have to reduce their costs," he added. "Reducing the costs doesn't necessarily mean that the manufacturers can't be offered the opportunity to define themselves."