Hanon-Flury is a wine producer who accepts one or two cars on his farm. The farm is located just outside the small village of Sermiers in the heart of Champagne. You can book by emailing or calling ahead. They are simple pitches with electricity and access to water, you also get a half bottle of their own champagne which is a very nice gesture. You can also get a champagne tasting if you want. You will get an interesting and personalised tasting by a knowledgeable winemaker. Here provides contact details and information about their champagne. They also have a page on Park4Night.
The site is a bit outside the village but you can walk to the nearest bakery in the morning. It's also a good starting point for travelling further into Champagne where there aren't many good pitches otherwise.
