I am a fan of The Vintage Web and I believe that I have found a wonderfully retro (currently active) site that fits their criteria perfectly.
I present the Wind and Wheels website.
From the wonderful Flash splash screen and animated gif enter graphic, you know you are in for a wonderful retro treat.
Once you have enjoyed the Flash animation, onto the main site, where you can find a wonderful animated rollover menu, a weather widget, an additional expanding side menu and clever use of Comic Sans.
Despite the website, there are some great photographs of wind powered action on the site, so well worth having a good look round.