sometime in the mid 70's [1970's guys, NOT 1870's and you know who you two are !] there was a 68 or 69 charger go across the auction block in Mercer, pa. that was a slant 6, 3 on the tree. i looked it over just for parts for mine or to part out at my junkyard. i can't remember what it brought, but was higher than the NADA book i always carried, so it went to other pastures.
that was the only one i have ever seen in my life. it was a typical western pa car with the usual rust problems, but from what i remember, it seemed to run well.