A car dealer asked me to do a website for him, and I put one together that I feel looks exceptionally nice.

This is going to be his own site, but it came about because I'M ALSO DOING A SITE IN THE COMMUNITY and originally had mentioned I would provide a page for him for advertising in the site, but then he asked me to do a complete site for him.

What would be some strategies at this point, as far as:

1. Promoting my community car site in which he would be included (need very low-cost methods).

2. Offering other additional services to promote his site separately (since he might be paying me more?