Howard... My Roadster is almost the same as yours mod and mileage wise. Personally, I do not think that 21.9k is too much for a car that there were only 928 of made world wide. We do not know of the numbers that were distributed to the United states, but we know that there are SRT-6 Roadsters in England, Canada, Germany, Australia, UAE, Africa, etc.. So, how many of these very limited beauties made it to the United States, or are still here? How many of those have been totaled or been run ragged?

I do think that it would more like sell quickly at 19.9k. It is really a matter of what your needs are. If an immediate sell is not a priority for you, then I would hold out for 21.9k. One thing for sure.... low mileage SRT-6 Roadsters are becoming more and more rare with each passing month.

Good luck with the sale.