Lexus has reportedly let slip via Twitter that it will introduce a concept car at the upcoming New York auto show. The concept is widely expected to preview the next GS sedan. The Japanese automaker refused to release more details, other than the rather cryptic “LF-Gh: LF = Lexus Future. h = hybrid. G = ...”. However, a preview of the next generation GS mid-sized sedan is a strong contender considering the production version is due later in 2011. The 2011 GS is expected to be longer and wider than the current version while also taking on a more assertive appearance in line with the L-Finesse design studies the company has shown.The New York auto show will be open to the public from April 22 to May 1, 2011.