I wrote the seller and he sells the exact same part with an adhesive back for the Crossfire. He says that the velcro version will not stick on the Chrysler carpet. Seems like it works well for you.

He recommends this one.

Stainless Steel Footrest to suit Chrysler Crossfire | eBay

Here's part of our conversation:
"There should be a listing on eBay.com (us site) for a footrest to suit the crossfire. It is essentially the same part however it features double sided tape instead of hook and loop tape. "

"It looks the same. Is it the same size? Personally I would prefer hook and loop attachment to the carpet rather than adhesive bonding to the carpet. Is there a reason to use adhesive on a Crossfire. "

" Yeah it's exactly the same apart from the tape.
Hook and loop tape doesn't work on the carpet in the crossfire (or any chrysler/jeep/fca vehicle as they all use 'Cut Pile" carpets in my experience), hence the adhesive. "


EDIT: I think the posters are talking to the same company. So what attachment works better on carpet?