Charles Perdue
Well-Known Member
- Joined
- Oct 8, 2005
- Messages
- 2,177
Just an old photo from an article that I remembered.....Notice the groves..... .Interesting Reading.
Mr. Singh patented this in the USA in 2001
https://www.popsci.com/cars/article/2004-09/obsession-mr-singhs-search-holy-grail/
Mr. Singh patented this in the USA in 2001
https://www.popsci.com/cars/article/2004-09/obsession-mr-singhs-search-holy-grail/
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