BMW has been linked with a switch to the DTM after high-ranking staff indicated that its future touring car activity will not necessarily be in the World Touring Car Championship.
Following the German manufacturer's announcement that it is to withdraw from Formula 1 at the end of this season, this week's AUTOSPORT magazine reports that the company is seeking alternatives to the WTCC, of which it has been openly critical throughout this year.
BMW board member Klaus Draeger said: "We have deliberately spoken about an involvement in touring cars in the broader sense."
The company's motorsport director, Mario Theissen, added: "WTCC is part of the touring car spectrum. It is no secret that we aren't particularly happy about the developments last year and this year, but no decision has been made.
"In any case, we will be present in touring car racing, both with works-supported programmes and in customer competition. We could also imagine other future projects, which we are not ready to talk about yet."
The DTM is seeking to attract a third manufacturer to join Mercedes and Audi, and the series last week announced a freeze on development into 2010 ahead of the introduction of a new set of technical regulations for the 2011 season.
Mercedes driver and joint championship leader Gary Paffett has said he would welcome the addition of BMW to the DTM.
Talking about the possible arrival of BMW in the series in his exclusive AUTOSPORT column, Paffett said: "To have the big three German manufacturers in the series would be awesome. Everyone agrees that we need a third manufacturer and it would be great for the championship if it happens."