$24.9K seems to be the low national advertised opening price on an inventory reduction SRT-6 coupe if you're willing to hop on a flight to Florida or Ohio. The lowest price ones generally do not have nav.

AutoTrader results for all leftover/overtock SRT-6 XF's in the United States with under 150 miles.

I may well regret it in a few months (or years), but I figured all my research (and cleverly hacked AutoTrader link to show cars under 150 miles only) might be of use to others, now that I've taken myself out of the market.

HINT - The first page (and a half?) of listings show up first because the dealer paid for a higher position in the search. The lowest price listings seem to, for now, begin on the second page in the non-featured listings.