Email and Internet marketing is not a fad, it's here to stay and will continue to explode in the coming years. If you're not already using the Internet and email addresses as part of you marketing and advertising plan, you soon will.
If you not doing it already, start collecting email addresses from customers. If you belong to local organizations like the Chamber of Commerce, get those lists too. There may be some restrictions, but get them. I have obtained email lists from all the local Chamber of Commerce's, clubs and business groups just by asking.
Create email newsletter or a monthly car tips email. I use Constant Contact to create a professional looking email which has links back to my web site, it is great marketing and still free.
Here's the link to Constant Contact if you are interested. http://www.constantcontact.com/index.jsp
If you a sample of one of my emails, let me know...