You'll need stellar credit and verifiable assets but these specialty companies might be an option:
http://www.jjbest.com/,
http://www.woodsidecredit.com/,
http://www.motorcarsfinancial.com/. Sure its nice to be able to pay cash for a toy, but a lot of people would go there whole lives without toys were it not for financial assistance.
I am not affiliated with any of these nor have I ever used them, I just know of them from having been associated with the auto business a few years back.