Further confusion!
Information that helps your case: The U.S. configurator depicts the metal pedals on a 135is when configured with DCT (i.e. two-pedal footwell) and manual (three pedal footwell).
Information that hurts your case: The online brochure seems to indicate that a DCT-equipped 135is doesn't include the metal pedals. Check out the footwell photo and caption on page 47 of the brochure:
http://www.bmwusa.com/standard/conte...7-d52969ee2783