The automaker has sent sent e-mails to registered Miata owners alerting them of the offer, which will run through Oct. 15. A total of 600 Vivid Yellow and Laser Blue Miatas will be produced.
Buyers can also order any available option. Those interested must visit Mazda's Web site.
Mazda said no advertising is planned. Doner, Southfield, Mich., handles.
Volkswagen of America used national TV and print to tout its online-only sales of special blue and yellow Beetles last year via Havas Advertising's Arnold Wordwide, Boston.