Regarding Auto Trader & craigslist, I was on cars.com there are 377 Xfires listed and another174 on cargurus.co. Probably some dupulaction there. Seems like a buyers market though.
I know what you mean about the 425 & Muncie difference. Probably fifteen years ago I wanted an 87 Grand National, so I answered an ad, and did a test drive. It was fast but when you like those M40 neck snaping kick in the but shifts that I was used to with my SD455. The GN just didn't measure up for me, but I would still like to have one. The GN's would beat me in the 1/4 mile because that little bit of turbo lag (I'm told) allowed then to hook up better. I had stock 2nd gen F Body suspension, so there was lots of smoke & horible 60ft times.
I didn't have my 427/425 running at the time but if I had, the situation would have been similar.
Which reminds me I've never even sat in an Xfire let alone drive one.
Maybe I won't like it! Anyone in the Tampa Bay area want to invite me over for a test drive. LOL.
Thanks for your comments.