Racing swamp buggies.
Fullsize image: https://diqn32j8nouaz.cloudfront.net...y_fullsize.jpg
https://diqn32j8nouaz.cloudfront.net...wamp_buggy.jpg
13:00 video:
https://www.youtube.com/watch?v=ODQSu1TrhkE
Previously:
https://www.homemadetools.net/forum/...227#post192001
https://www.homemadetools.net/forum/...431#post169794
https://www.homemadetools.net/forum/...6867#post84512
https://www.homemadetools.net/forum/...578#post147469