During his lengthy F1 career, the German raced with BMW power in 2005 with Williams, and in 2006-9 with BMW Sauber.
Unable to secure a race seat in 2010 when BMW decided to pull out of F1 at the end of the 2009 season, the 33-year-old joined Mercedes GP as its test driver, before moving on to becoming Pirelli’s tyre development driver and then making a few guest outings with Sauber at the end of the season.
But Heidfeld is again struggling to secure a full-time race seat for the 2011 season, and is looking to his future in motorsport perhaps lying elsewhere.
“I have not finished my career in Formula One, but working in the long term with BMW when they return to the DTM would be interesting,” he told Germany’s Auto Bild.
BMW recently announced that it was withdrawing its works involvement in the World Touring Car Championship.
[Original image via Sutton Images]