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I wondered the same, was JD Yenko badging Copos he sold to other dealers?
Seems crazy w/ Rauch like 1000 miles away, but JD cars indeed sold there.
Maybe JD was related to or knew the Rauch family, Rauch Motors was in operation since the early 50’s, also previous to that, both Jack Rauch Sr. & Jr. were at Downtown Motors Fort Collins.
All appears as if Rauch was NOT a Chevrolet Dealer, although they phrased their Ads as if they were, here’s a few below including final Auction after shutting down in ‘71 w/ financial problems.
Otherwise, note the 01/17/71 Ad includes a Used ‘69 Yenko Chevelle, possibly the Yellow one as 01/70 Ad above but back used, as previously linked thread from years back w/ OP trying to track down his father’s car that disappeared after he had passed away?
Lots to ponder,
~ Pete
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