The Chevrolet Citation is a range of compact automobiles that was marketed by Chevrolet from the 1980 to 1985 model years.
The Honda X11 (also called CB1100SF) is a standard motorcycle produced by Honda with a liquid-cooled, inline-four engine and a 1990s-style cooling unit at its fore end.
The Metropolitan Transportation Authority (MTA) operates 76 express bus routes in New York City.
An N11 code (N-one-one) is a three-digit telephone number used in abbreviated dialing in some telephone administrations of the North American Numbering Plan (NANP).
X10 is a series of two-car electric multiple units operated by Greater Stockholm Transport (SL) on the Stockholm commuter rail.
The Convair SM-65A Atlas, or Atlas A was the first full-scale prototype of the Atlas missile, which first flew on 11 June 1957.
The X Window System (X11, or shortened to simply X) is a windowing system for bitmap displays, common on UNIX-like computer operating systems.
XQuartz (formerly and often still informally referred to as X11.app) is Apple Inc.'s version of the X server, a component of the X Window System (X11, or shortened to simply X, and sometimes informally X-Windows) for macOS.