Atari 65XE
http://www.computercloset.org/atari65xe.htm
"The 65XE was essentially a straight replacement for the Atari 800XL, adding not much more than a new version of BASIC, and updating the looks to match its big brother, the 130XE."
The Atari 65XE (900XLF)
http://www.atarimuseum.com/computers/8bits/xe/65xe/65xe.html
"Introduced at the 1985 CES in Las Vegas. The Atari 65XE was the direct replacement for the Atari 800XL Personal Computer."