there are several people are using - for info email me and i'll give you a couple more specific ideas.
Desired Color Scheme:
we'd prefer but are not limited to: black, silver, greys, reds, and blues.
also a good reference can be provided by emailing me - as i have some jpgs of older designs that always appealed to me. Please see the above information - if you have any additional concerns please contact Ryan Zappone at firstname.lastname@example.org
Accepted File Formats:
925NEVER Racing is currently looking for graphic designers across the country to compete in a several tee-shirt design concepts. The winners of any design chosen by 925NEVER Racing will be paid per design chosen. We are looking for thematic shirts that embrace the roots of auto racing especially runnin shine, chasing loose women, scars, glory and southern rock. This work will need to be done in a vector art format (.ai or .eps preferably). We would advise using racing/souther rock colors (black base, red, blue, silver etc.). If you would like a copy in vector format of our pre-existing log to base your design off of please email email@example.com to request the logo.
We are looking to pick roughly 6-10 designs and have a couple rough concepts as well but would like to see what you guys come up with first.
again any questions write firstname.lastname@example.org or call him at 858.336.8393