Just a few years ago, the 2013 Acura ILX range would have been near the leading edge of gas mileage in the entry-luxury segment, but time and technology have marched forward quickly, and despite the ILX's relative light weight and compact size, it comes up a bit short in efficiency, particularly in the 2.4L and Hybrid models.
Though the EPA hasn't yet rated the 2013 ILX, Acura has provided its own projected figures for gas mileage. The base 2.0L model rates a respectable 24 mpg city and 35 mpg highway. The sporty 2.4L scores slightly worse at 22 mpg city and 31 mpg highway. The Hybrid tops them both--and outshines Lexus' HS 250h--but its 39 mpg city and 38 mpg highway are less than impressive in light of recent non-hybrid offerings from the likes of Ford, Mazda, and other non-luxury marques.