Weekend Trip to Champagne in April?

One of the social groups I'm a member of is the London Wine Lovers Meetup Group. A few of the members are currently researching and planning a long weekend trip for April (Thursday night - Sunday night either 3-6 April or 10-13 April) to the Champagne region. Estimated total cost is around £300 (includes Eurostar, other trains, rental car, hotels, meals, etc) but more details to come in early February. If anyone is interested, please let me know and I will keep you updated. I'm planning on going!