Quote Originally Posted by Terry S View Post
Everything you need to know on six wheelers but didn't know who to ask.......

This shows the development of the cars in order

http://www.forix.com/8w/sixwheelers.html

This is all about the Williams, the last

https://primotipo.com/2017/11/23/williams-six-wheelers/
Its an interesting article, however it gives incorrect designation for both Williams, they are the FW07D and FW08B. D was a one off chassis Williams had built in 81 with the stated purpose of building a 6 wheeler. Somehow some publications in 82 got the initial Williams chassis numbering incorrect and instead of racing FW07D, they were actually FW07C.