Looks like it's coming up for auction.
https://www.mecum.com/lot-detail/CH1015-224538/0/1966-AMC-AMX-Prototype/4-Speed/
https://www.mecum.com/lot-detail/CH1015-224538/0/1966-AMC-AMX-Prototype/4-Speed/
Looks like it's coming up for auction.
https://www.mecum.com/lot-detail/CH1015-224538/0/1966-AMC-AMX-Prototype/4-Speed/