The event was held in Netil Market in Hackney and brought together wine merchants from across the capital including Bottle Apostle, Borough Wines, Planet of the Grapes, Noble Fine Liquor, Roberson, Sweet Thursday and Wine Chap.
There are now plans to hold Wine Car Boots in other locations to allow more local independents to take part. The aim is for the next sale to be held in a more central location.
The event is the brainchild of Ruth Spivey, who worked for Bottle Apostle, importer Decorum Vintners and bar group Rushmore before becoming a freelance industry consultant in March. She has since opened a pop-up wine bar in Dalston, east London.
Spivey said: “Having worked in an independent merchant, I know there are still plenty of people who don’t feel confident enough to go in and shop, so I’m taking the wine to them, in an unstuffy location, all together, all on one day, outside, with some decent food and a bit of music.
“You can get to know some new wines and give yourself more choice in the future. There’s a lot of good wine out there, much of it as affordable as anything in the supermarket.
“I hope to take Wine Car Boot to different areas of London or other cities, the idea being that each one is for the local shops in that area.”
Some 300 visitors to the inaugural car boot were charged £15 for entry including 10 samples, a bottle carrier to buy bottles to take home, a tasting glass and a snack.