There never was an 848R, or S or SP. Ducati just made the 848 and then tweaked it by adding Brembo monobloc brakes and a slightly more powerful motor to produce the 848 EVO.
The owner of this 848 has really gone to town, billing his bike as an 848R. It's a really good effort and if you want a stand-out bike then this is a contender.
Read more: http://www.visordown.com/snippets/ducati-never-made-an-848r/19743.html#ixzz1hI53pgcE