A suspicious looking 3-series sedan was caught while being loaded at a dock, which is likely to be a test mule of the upcoming sedan version of the next generation M3. The wheels on this car match those of previous coupe versions seen in recent spy footage and looking at the rear undercarriage shot reveals the M-specific quad exhaust outlets and vaned rear differential.
The official unveiling of the new M3 isn't due until the second half of next year, and is rumored to be during the Paris Motor Show. Until now, talk of the M3 sedan was merely speculation but these images do go some way in confirming the existence of the four-door version. Follow the jump to see the images in full.
[Source: German Car Scene]