You are not awarded a domain name simply because you hold a trademark. There is evidence that domains have been awarded to trademark holders after a UDRP hearing and the trademark holder contested the validity of the registration. Read the UDRP guidelines [0].
There is also the counterpoint of the case of Nissan Motor Co vs. Nissan Computer Corp [1] where Nissan Motors owns the trademarks but have not been granted nissan.com.
Just to clarify, Nissan Computers also holds trademarks but in a difference field of commerce.
Just like Volkswagen and Canon both hold trademarks on Eos.